diff --git a/Doc/RomWBW Applications.pdf b/Doc/RomWBW Applications.pdf
index 2598683a2..736b93b44 100644
Binary files a/Doc/RomWBW Applications.pdf and b/Doc/RomWBW Applications.pdf differ
diff --git a/Doc/RomWBW Disk Catalog.pdf b/Doc/RomWBW Disk Catalog.pdf
index f7ed2dc1f..0c9e91bac 100644
Binary files a/Doc/RomWBW Disk Catalog.pdf and b/Doc/RomWBW Disk Catalog.pdf differ
diff --git a/Doc/RomWBW Hardware.pdf b/Doc/RomWBW Hardware.pdf
index 181accbe9..8074dad9e 100644
Binary files a/Doc/RomWBW Hardware.pdf and b/Doc/RomWBW Hardware.pdf differ
diff --git a/Doc/RomWBW Introduction.pdf b/Doc/RomWBW Introduction.pdf
index 43dd28054..832355596 100644
Binary files a/Doc/RomWBW Introduction.pdf and b/Doc/RomWBW Introduction.pdf differ
diff --git a/Doc/RomWBW System Guide.pdf b/Doc/RomWBW System Guide.pdf
index bbe44f46f..a1692605e 100644
Binary files a/Doc/RomWBW System Guide.pdf and b/Doc/RomWBW System Guide.pdf differ
diff --git a/Doc/RomWBW User Guide.pdf b/Doc/RomWBW User Guide.pdf
index 185c35038..12a60be93 100644
Binary files a/Doc/RomWBW User Guide.pdf and b/Doc/RomWBW User Guide.pdf differ
diff --git a/ReadMe.md b/ReadMe.md
index aa1fd04f3..8f0970df3 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -7,7 +7,7 @@
 **RomWBW Introduction** \
 Version 3.5 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-30 Jan 2025
+08 Feb 2025
 
 # Overview
 
diff --git a/ReadMe.txt b/ReadMe.txt
index c5c0f0529..4e1a9609a 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -1,6 +1,6 @@
 RomWBW Introduction
 Wayne Warthen (wwarthen@gmail.com)
-30 Jan 2025
+08 Feb 2025
 
 
 
diff --git a/Source/Doc/Hardware.md b/Source/Doc/Hardware.md
index 3830ca676..33f75843d 100644
--- a/Source/Doc/Hardware.md
+++ b/Source/Doc/Hardware.md
@@ -645,8 +645,10 @@ program the image into the first 512KB of the ROM for now.
 - IDE: MODE=RC, IO=16, SLAVE
 - PPIDE: IO=32, MASTER
 - PPIDE: IO=32, SLAVE
-- CTC: IO=136
-- EZ80 DRIVERS
+- EZ80: CPU DRIVER
+- EZ80: SYS TIMER DRIVER
+- EZ80: RTC DRIVER
+- EZ80: UART DRIVER
 
 #### Notes:
 
@@ -1890,6 +1892,7 @@ may be discovered by RomWBW in your system.
 | DUART     | SCC2681 or compatible Dual UART                        |
 | ESPCON    | ESP32 Firmware-based Video Console                     |
 | ESPSER    | ESP32 Firmware-based Serial Interface                  |
+| EZ80UART  | eZ80 Serial Interface                                  |
 | LPT       | Parallel I/O Controller                                |
 | PIO       | Zilog Parallel Interface Controller                    |
 | PPPCON    | ParPortProp Serial Console Interface                   |
@@ -1906,12 +1909,13 @@ discovers for the initial console.  The following character devices are
 scanned in the order shown.  The available character devices depend on
 the active platform and configuration.
 
-#. SSET: Simple Serial Interface
+#. SSER: Simple Serial Interface
 #. ASCI: Zilog Z180 CPU Built-in Serial Ports
 #. Z2U: Zilog Z280 CPU Built-in Serial Ports
 #. UART: 16C550 Family Serial Interface
 #. DUART: SCC2681 or compatible Dual UART
 #. SIO: Zilog Serial Port Interface
+#. EZ80UART: eZ80 Serial Port Interface
 #. ACIA: MC68B50 Asynchronous Communications Interface Adapter
 #. USB-FIFO: FT232H-based ECB USB FIFO
 
@@ -1974,6 +1978,7 @@ the active platform and configuration.
 | DS7RTC    | Maxim DS1307 PCF I2C Real-Time Clock w/ NVRAM          |
 | DS1501RTC | Maxim DS1501/DS1511 Watchdog Real-Time Clock           |
 | DSRTC     | Maxim DS1302 Real-Time Clock w/ NVRAM                  |
+| EZ80RTC   | eZ80 Real-Time Clock                                   |
 | INTRTC    | Interrupt-based Real Time Clock                        |
 | PCF       | PCF8584-based I2C Real-Time Clock                      |
 | RP5C01    | Ricoh RPC01A Real-Time Clock w/ NVRAM                  |
@@ -1998,6 +2003,7 @@ the active platform and configuration.
 | CTC       | Zilog Clock/Timer                                      |
 | DMA       | Zilog DMA Controller                                   |
 | ESP       | ESP32 Firmware-based interface                         |
+| EZ80TIMER | eZ80 System Timer                                      |
 | KIO       | Zilog Serial/ Parallel Counter/Timer                   |
 | PPP       | ParPortProp Host Interface Controller                  |
 | PRP       | PropIO Host Interface Controller                       |
@@ -2054,14 +2060,13 @@ for more information on UNA.
   for UNA: `CPM.SYS` and `ZSYS.SYS`.  So, you can boot a ROM OS and
   then use one of these files to update the system track.
 
-- Only Z-System and CP/M 2 are available OSes under UNA at this time.
-  Since NZ-COM launches from CP/M 2, it is usable.  p-System is not
-  usable under UNA.
-
+- The only operating systems supported at this time are CP/M 2 and
+  ZSDOS.  NZ-COM is also supported because it uses the ZSDOS CBIOS.
+  None of the other RomWBW operating systems are supported such as
+  CP/M 3, ZPM3, and p-System.
+  
 - Some of the RomWBW-specific applications are not UNA compatible.
 
-
-
 # Errata
 
 The following errata apply to $doc_product$ $doc_ver$:
diff --git a/Source/HBIOS/Build.cmd b/Source/HBIOS/Build.cmd
index 920b8d1a9..ac1e5d05f 100644
--- a/Source/HBIOS/Build.cmd
+++ b/Source/HBIOS/Build.cmd
@@ -227,6 +227,7 @@ call Build ZETA2 std || exit /b
 call Build N8 std || exit /b
 call Build MK4 std || exit /b
 call Build RCZ80 std || exit /b
+call Build RCEZ80 std || exit /b
 call Build RCZ80 kio_std || exit /b
 call Build RCZ80 easy_std || exit /b
 call Build RCZ80 tiny_std || exit /b
diff --git a/Source/HBIOS/Build.sh b/Source/HBIOS/Build.sh
index d1c6d38a3..7517d9ac2 100755
--- a/Source/HBIOS/Build.sh
+++ b/Source/HBIOS/Build.sh
@@ -18,6 +18,7 @@ if [ "${ROM_PLATFORM}" == "dist" ] ; then
 	ROM_PLATFORM="ZETA2"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="N8"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="MK4"; ROM_CONFIG="std"; bash Build.sh
+	ROM_PLATFORM="RCEZ80"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="RCZ80"; ROM_CONFIG="std"; bash Build.sh
 	ROM_PLATFORM="RCZ80"; ROM_CONFIG="kio_std"; bash Build.sh
 	ROM_PLATFORM="RCZ80"; ROM_CONFIG="easy_std"; bash Build.sh
diff --git a/Source/HBIOS/Config/MK4_std.asm b/Source/HBIOS/Config/MK4_std.asm
index d1d789d5b..26ecc1a63 100644
--- a/Source/HBIOS/Config/MK4_std.asm
+++ b/Source/HBIOS/Config/MK4_std.asm
@@ -61,8 +61,10 @@ CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
 ;
 UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
 SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 ;
 VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
@@ -73,6 +75,7 @@ VGAENABLE	.SET	TRUE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
 FDMODE		.SET	FDMODE_DIDE	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
 FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
 FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
 ;
@@ -83,11 +86,10 @@ SDMODE		.SET	SDMODE_MK4	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4
 ;
 PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
 ;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
 SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
 ;
 AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
 ;
-SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
-;
 YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
-
diff --git a/Source/HBIOS/Config/N8_std.asm b/Source/HBIOS/Config/N8_std.asm
index 5d3f6171c..b916e3fea 100644
--- a/Source/HBIOS/Config/N8_std.asm
+++ b/Source/HBIOS/Config/N8_std.asm
@@ -54,25 +54,38 @@ AUTOCON		.SET	TRUE		; ENABLE CONSOLE TAKEOVER AT LOADER PROMPT
 CPUOSC		.SET	18432000	; CPU OSC FREQ IN MHZ
 INTMODE		.SET	2		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 ;
+RAMSIZE		.SET	512		; SIZE OF RAM IN KB (MUST MATCH YOUR HARDWARE!!!)
+;
 Z180_CLKDIV	.SET	1		; Z180: CHK DIV: 0=OSC/2, 1=OSC, 2=OSC*2
 Z180_MEMWAIT	.SET	0		; Z180: MEMORY WAIT STATES (0-3)
 Z180_IOWAIT	.SET	1		; Z180: I/O WAIT STATES TO ADD ABOVE 1 W/S BUILT-IN (0-3)
+;
+DSKYENABLE	.SET	FALSE		; ENABLES DSKY FUNCTIONALITY
+ICMENABLE	.SET	FALSE		; ENABLES ORIGINAL DSKY ICM DRIVER (7218)
+PKDENABLE	.SET	FALSE		; ENABLES DSKY NG PKD DRIVER (8259)
 CRTACT		.SET	FALSE		; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
 VDAEMU_SERKBD	.SET	$FF		; VDA EMULATION: SERIAL KBD UNIT #, OR $FF FOR HW KBD
 ;
 DSRTCENABLE	.SET	TRUE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
+INTRTCENABLE	.SET	FALSE		; ENABLE PERIODIC INTERRUPT CLOCK DRIVER (INTRTC.ASM)
+;
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+ASCIENABLE	.SET	TRUE		; ASCI: ENABLE Z180 ASCI SERIAL DRIVER (ASCI.ASM)
 ;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
 TMSENABLE	.SET	TRUE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
+FDCNT		.SET	2		; FD: NUMBER OF FLOPPY DRIVES ON THE INTERFACE (1-2)
 FD0TYPE		.SET	FDT_3HD		; FD 0: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
 FD1TYPE		.SET	FDT_3HD		; FD 1: DRIVE TYPE: FDT_[3DD|3HD|5DD|5HD|8]
 ;
 PPIDEENABLE	.SET	FALSE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 ;
 SDENABLE	.SET	TRUE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
-;
 SDMODE		.SET	SDMODE_CSIO	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512|K80W]
 ;
+PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+;
+PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+;
 AY38910ENABLE	.SET	TRUE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
diff --git a/Source/HBIOS/Config/SBC_simh_std.asm b/Source/HBIOS/Config/SBC_simh_std.asm
index e72134434..3cb996987 100644
--- a/Source/HBIOS/Config/SBC_simh_std.asm
+++ b/Source/HBIOS/Config/SBC_simh_std.asm
@@ -52,6 +52,7 @@ INTMODE		.SET	1		; INTERRUPTS: 0=NONE, 1=MODE 1, 2=MODE 2, 3=MODE 3 (Z280)
 DSRTCENABLE	.SET	FALSE		; DSRTC: ENABLE DS-1302 CLOCK DRIVER (DSRTC.ASM)
 HTIMENABLE	.SET	TRUE		; ENABLE SIMH TIMER SUPPORT
 SIMRTCENABLE	.SET	TRUE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
+;
 SSERENABLE	.SET	TRUE		; SSER: ENABLE SIMPLE SERIAL DRIVER (SSER.ASM)
 SSERCFG		.SET	SER_9600_8N1	; SSER: SERIAL LINE CONFIG
 SSERSTATUS	.SET	$6D		; SSER: STATUS PORT
diff --git a/Source/HBIOS/Config/SBC_std.asm b/Source/HBIOS/Config/SBC_std.asm
index 1f48eef0b..11ac352a5 100644
--- a/Source/HBIOS/Config/SBC_std.asm
+++ b/Source/HBIOS/Config/SBC_std.asm
@@ -72,9 +72,9 @@ UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
 SIOENABLE	.SET	FALSE		; SIO: ENABLE ZILOG SIO SERIAL DRIVER (SIO.ASM)
 ;
 VDUENABLE	.SET	FALSE		; VDU: ENABLE VDU VIDEO/KBD DRIVER (VDU.ASM)
-CVDUENABLE	.SET	FALSE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
+CVDUENABLE	.SET	TRUE		; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
 TMSENABLE	.SET	FALSE		; TMS: ENABLE TMS9918 VIDEO/KBD DRIVER (TMS.ASM)
-VGAENABLE	.SET	FALSE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
+VGAENABLE	.SET	TRUE		; VGA: ENABLE VGA VIDEO/KBD DRIVER (VGA.ASM)
 ;
 FDENABLE	.SET	TRUE		; FD: ENABLE FLOPPY DISK DRIVER (FD.ASM)
 FDMODE		.SET	FDMODE_DIO3	; FD: DRIVER MODE: FDMODE_[DIO|ZETA|ZETA2|DIDE|N8|DIO3|RCSMC|RCWDC|DYNO|EPFDC|MBC]
@@ -89,7 +89,7 @@ PPIDEENABLE	.SET	TRUE		; PPIDE: ENABLE PARALLEL PORT IDE DISK DRIVER (PPIDE.ASM)
 SDENABLE	.SET	FALSE		; SD: ENABLE SD CARD DISK DRIVER (SD.ASM)
 SDMODE		.SET	SDMODE_PPI	; SD: DRIVER MODE: SDMODE_[JUHA|N8|CSIO|PPI|UART|DSD|MK4|SC|MT|USR|PIO|Z80R|EPITX|FZ80|GM|EZ512|K80W]
 ;
-PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPENABLE	.SET	TRUE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
 ;
 SN76489ENABLE	.SET	FALSE		; SN: ENABLE SN76489 SOUND DRIVER
 ;
diff --git a/Source/HBIOS/cfg_MK4.asm b/Source/HBIOS/cfg_MK4.asm
index 44b34e577..49a3cd2b3 100644
--- a/Source/HBIOS/cfg_MK4.asm
+++ b/Source/HBIOS/cfg_MK4.asm
@@ -327,11 +327,6 @@ PIO0BASE	.SET	$B8		; PIO 0: REGISTERS BASE ADR
 PIO1BASE	.SET	$BC		; PIO 1: REGISTERS BASE ADR
 ;
 LPTENABLE	.SET	FALSE		; LPT: ENABLE CENTRONICS PRINTER DRIVER (LPT.ASM)
-LPTMODE		.SET	LPTMODE_NONE	; LPT: DRIVER MODE: LPTMODE_[NONE|SPP|MG014]
-LPTCNT		.SET	1		; LPT: NUMBER OF CHIPS TO DETECT (1-2)
-LPTTRACE	.SET	1		; LPT: TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
-LPT0BASE	.SET	$E8		; LPT 0: REGISTERS BASE ADR
-LPT1BASE	.SET	$EC		; LPT 1: REGISTERS BASE ADR
 ;
 PPAENABLE	.SET	FALSE		; PPA: ENABLE IOMEGA ZIP DRIVE (PPA) DISK DRIVER (PPA.ASM)
 ;
@@ -364,7 +359,7 @@ SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
 ;
 DMAENABLE	.SET	FALSE		; DMA: ENABLE DMA DRIVER (DMA.ASM)
 DMABASE		.SET	$E0		; DMA: DMA BASE ADDRESS
-DMAMODE		.SET	DMAMODE_ECB	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
+DMAMODE		.SET	DMAMODE_Z180	; DMA: DMA MODE (NONE|ECB|Z180|Z280|RC|MBC|DUO)
 ;
 YM2612ENABLE	.SET	FALSE		; YM2612: ENABLE YM2612 DRIVER
 VGMBASE		.SET	$C0		; YM2612: BASE ADDRESS FOR VGM BOARD (YM2612/SN76489s/CTC)
diff --git a/Source/HBIOS/cfg_N8.asm b/Source/HBIOS/cfg_N8.asm
index d7f8267a7..b3fb78a1d 100644
--- a/Source/HBIOS/cfg_N8.asm
+++ b/Source/HBIOS/cfg_N8.asm
@@ -179,7 +179,7 @@ SSEROINV	.SET	FALSE		; SSER: OUTPUT READY BIT INVERTED
 ;
 DUARTENABLE	.SET	FALSE		; DUART: ENABLE 2681/2692 SERIAL DRIVER (DUART.ASM)
 ;
-UARTENABLE	.SET	TRUE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
+UARTENABLE	.SET	FALSE		; UART: ENABLE 8250/16550-LIKE SERIAL DRIVER (UART.ASM)
 UARTCNT		.SET	5		; UART: NUMBER OF CHIPS TO DETECT (1-8)
 UARTOSC		.SET	1843200		; UART: OSC FREQUENCY IN MHZ
 UARTINTS	.SET	FALSE		; UART: INCLUDE INTERRUPT SUPPORT UNDER IM1/2/3
@@ -309,8 +309,15 @@ SDMTSWAP	.SET	FALSE		; SD: SWAP THE LOGICAL ORDER OF THE SPI PORTS OF THE MT011
 CHENABLE	.SET	FALSE		; CH: ENABLE CH375/376 USB SUPPORT
 ;
 PRPENABLE	.SET	FALSE		; PRP: ENABLE ECB PROPELLER IO BOARD DRIVER (PRP.ASM)
+PRPSDENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER SD CARD SUPPORT
+PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
 ;
 PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.SET	N8_PPI0		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.SET	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
 ;
 ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
 ;
@@ -348,6 +355,7 @@ SNMODE		.SET	SNMODE_VGM	; SN: DRIVER MODE: SNMODE_[NONE|RC|VGM|DUO]
 AY38910ENABLE	.SET	FALSE		; AY: ENABLE AY-3-8910 / YM2149 SOUND DRIVER
 AY_CLK		.SET	1789772		; AY: PSG CLOCK FREQ, ASSUME MSX STD
 AYMODE		.SET	AYMODE_N8	; AY: DRIVER MODE: AYMODE_[SCG|N8|RCZ80|RCZ180|MSX|LINC|MBC|DUO|NABU]
+AY_FORCE	.SET	FALSE		; AY: BYPASS AUTO-DETECT, FORCED PRESENT
 ;
 SPKENABLE	.SET	FALSE		; SPK: ENABLE RTC LATCH IOBIT SOUND DRIVER (SPK.ASM)
 ;
diff --git a/Source/HBIOS/cfg_RCEZ80.asm b/Source/HBIOS/cfg_RCEZ80.asm
index 2c3382b92..5c64018f0 100644
--- a/Source/HBIOS/cfg_RCEZ80.asm
+++ b/Source/HBIOS/cfg_RCEZ80.asm
@@ -81,7 +81,7 @@ RTCIO		.SET	$C0		; RTC LATCH REGISTER ADR
 KIOENABLE	.SET	FALSE		; ENABLE ZILOG KIO SUPPORT
 KIOBASE		.SET	$80		; KIO BASE I/O ADDRESS
 ;
-CTCENABLE	.SET	TRUE		; ENABLE ZILOG CTC SUPPORT
+CTCENABLE	.SET	FALSE		; ENABLE ZILOG CTC SUPPORT
 CTCDEBUG	.SET	FALSE		; ENABLE CTC DRIVER DEBUG OUTPUT
 CTCBASE		.SET	$88		; CTC BASE I/O ADDRESS
 CTCTIMER	.SET	FALSE		; ENABLE CTC PERIODIC TIMER
diff --git a/Source/HBIOS/cfg_SBC.asm b/Source/HBIOS/cfg_SBC.asm
index 5065bdd2e..6cf84a0e8 100644
--- a/Source/HBIOS/cfg_SBC.asm
+++ b/Source/HBIOS/cfg_SBC.asm
@@ -157,7 +157,7 @@ HTIMENABLE	.SET	FALSE		; ENABLE SIMH TIMER SUPPORT
 SIMRTCENABLE	.SET	FALSE		; ENABLE SIMH CLOCK DRIVER (SIMRTC.ASM)
 ;
 DS7RTCENABLE	.SET	FALSE		; DS7RTC: ENABLE DS-1307 I2C CLOCK DRIVER (DS7RTC.ASM)
-DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTC_[PCF]
+DS7RTCMODE	.SET	DS7RTCMODE_PCF	; DS7RTC: OPERATING MODE: DS7RTCMODE_[PCF]
 ;
 DS5RTCENABLE	.SET	FALSE		; DS5RTC: ENABLE DS-1305 SPI CLOCK DRIVER (DS5RTC.ASM)
 ;
@@ -302,6 +302,10 @@ PRPSDTRACE	.SET	1		; PRP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
 PRPCONENABLE	.SET	TRUE		; PRP: ENABLE PROPIO DRIVER VIDEO/KBD SUPPORT
 ;
 PPPENABLE	.SET	FALSE		; PPP: ENABLE ZETA PARALLEL PORT PROPELLER BOARD DRIVER (PPP.ASM)
+PPPBASE		.SET	$60		; PPP: PPI REGISTERS BASE ADDRESS
+PPPSDENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER SD CARD SUPPORT
+PPPSDTRACE	.SET	1		; PPP: SD CARD TRACE LEVEL (0=NO,1=ERRORS,2=ALL)
+PPPCONENABLE	.SET	TRUE		; PPP: ENABLE PPP DRIVER VIDEO/KBD SUPPORT
 ;
 ESPENABLE	.SET	FALSE		; ESP: ENABLE ESP32 IO BOARD DRIVER (ESP.ASM)
 ;
diff --git a/Source/HBIOS/hbios.asm b/Source/HBIOS/hbios.asm
index a3d7f06e1..bc504fb95 100644
--- a/Source/HBIOS/hbios.asm
+++ b/Source/HBIOS/hbios.asm
@@ -8772,6 +8772,7 @@ PS_SDESPSER	.TEXT	"ESPSER$"
 PS_SDSCON	.TEXT	"SCON$"
 PS_SDEF		.TEXT	"EF$"
 PS_SDSSER	.TEXT	"SSER$"
+PS_SDEZ80	.TEXT	"EZ80$"
 ;
 ; CHARACTER SUB TYPE STRINGS
 ;
diff --git a/Source/ver.inc b/Source/ver.inc
index 077608a63..d11de0bdc 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	5
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.5.0-beta.4"
+#DEFINE BIOSVER	"3.5.0-beta.5"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index dff5d2ec0..ebd08638c 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	5
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.5.0-beta.4"
+	db	"3.5.0-beta.5"
 	endm