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feat(tt_um_lisa): Initial updates to LISA documentation. More to come. …
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| +------+ {pw} | ||
| +------>|Config| +------+ +-------+{pw} | ||
| | | Regs | | LISA | | LISA | | ||
| +----+----+ +------+ | qspi | | qqspi | QSPI | ||
| |{pt} | {pt} | +<--->| +---> | ||
| |\ | Debug | | QSPI | | QPSI | CEs | ||
| rx1 -----*-+ | | Control +----------->| ARB | | Ctrl +---> | ||
| | | | | +----+ | +-+--+-+ +-------+ | ||
| rx2 ---*-|-+ +-----|->|UART+-|-----------+ |I |D | ||
| | | | | +>| +----+ +--------+ | | | +----------+ | ||
| rx3 -*-|-|-+ | | +---------+ Control| +--(--(----->|UART1 | | ||
| | | | |/ |Baud Set V v v | GPIO+-> | ||
| | | | |Port| /----------\ +-+-----+--+++ | I2C+-> | ||
| V V V |Sel | | HW INT |{pb}| | | UART2+-> | ||
| +----------+-+ | | MUL/DIV |<-->| +--->| | | ||
| | {pt} +--+ \----------/ | LISA | | Periph | | ||
| | ^Debug^ | /----------\ | CORE | | {py} | | ||
| | ^Autobaud^ | | bfloat |{pb}| | | | | ||
| +------------+ | MUL/ADD |<-->|{pb} +--+ | Timer1 | | ||
| \----------/ +-+-------+--+ | | Timer2 | | ||
| | | | +----------+ | ||
| +-------+ +----+--+ +--+----+| +----------+ | ||
| {pr}| RAM32 +----+ DATA | | INST |+>| LISA |{pt} | ||
| | 128B | | CACHE | | CACHE | | Debug | | ||
| +-------+ +-------+ +-------+ +----------+ | ||
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| <h4>LISA Microcontroller Block Diagram</h4> | ||
| {:FILE scale 0.8 theme light font-size 10} |
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| .rx1. |\ +--------------------------------+ | ||
| ui_in[3]--------*-+1| |{pt} Debug Control | | ||
| .rx2. | | | .rx. | +------+ +---------------+ | Debug | ||
| uio_in[4]------*-|-+2+------------------------------------|->| | | | | Bus | ||
| .rx3.| | | | .tx. | | +--+----- FSM ----+---|----------> | ||
| uio_in[6]----*-|-|-+3| +---------------<------|--+ | | | | | | ||
| | | | |/ .1. | | | UART | | {cl} | | | | ||
| | | | |Port +-----|--+''\__________ | | | +-------+-------+ | | ||
| | | | | Sel | .2. *--+__/ uio_out[4] | | | | {pr} | | ||
| V V V *--------*-----|--+''\__________ | | | +-------+-------+ | Registers | ||
| +-------------+-+ | .3. *--+__/ uio_out[5] +--|->| {pb} | | Registers +---|----------> | ||
| | {pt} | +-----|--+''\__________ | | +---+--+ +---------------+ | | ||
| | ^Debug^ | .Baud Set. +--+__/ uio_out[5] | | +-------------------------|----------> | ||
| | ^Autobaud^ +--------------------------------+ +--------------------------------+ Uart | ||
| +---------------+ Passthrough | ||
| <h4>Debug Connectivity and Autobaud</h4> | ||
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| {:FILE scale 0.8 theme light font-size 10} |
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| <h4>Tiny Tapeout Extended GPIO</h4> | ||
| +-------------------+ +------------------------+ +-------------------+ +-------------------+ | ||
| | TT07 | | | | | | | | ||
| | GPIOs | | | | | | | | ||
| 16 | | | GPIO | | I2C | uio[6] | Adafruit | | ||
| ---/-->|ext_out[15:0] | | Bridge | | Master +-------->|SCL I2C | | ||
| 16 | +--------+---- FSM ----+------>| | uio[7] | Port | | ||
| <--/---+ext_in[15:0] | | | | +-------->|SDA Expander | | ||
| 16 | | | | | | | | | ||
| ---/-->|ext_oen[0] {pr} | | {cl} | | {pb} | | {pt} | | ||
| +-------------------+ +------------------------+ +-------------------+ +-------------------+ | ||
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