708 UART
708 : UART
- Author: Darryl Miles
- Description: UART
- GitHub repository
- Clock: 0 Hz
How it works
Docs to follow.
How to test
Docs to follow.
External hardware
Standard Tiny Tapeout PCB. The IC is a UART DTE.
Trying for:
- TxD on UO_OUT[4] for OUT4 on GPIO13 with RP2040 UART0 (main set)
- RxD on UO_IN[3] for IN3 on GPIO12 with RP2040 UART0 (main set)
- RTS on UO_OUT[5] for OUT5 on GPIO14 with RP2040 UART0 (main set)
- CTS on UO_IN[6] for IN6 on GPIO19 with RP2040 UART0 (adjacent set)
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | altclk | busData0 | |
| 1 | busMode0 | busData1 | |
| 2 | busMode1 | busData2 | |
| 3 | rxd | dtr | busData3 |
| 4 | dsr | txd | busData4 |
| 5 | dcd | rts | busData5 |
| 6 | cts | intTx | busData6 |
| 7 | ri | intRx | busData7 |