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STD SC104 v1.0 Z80 SIO/2 for RC2014
License: Public Domain
Mode: Editors' pick
- 5
Update time：
2021-10-11 10:24:49
Creation time：
2018-05-28 10:50:00
Description
SC104 v1.0 (www.scc.me.uk)
Z80 Serial Input/Output (SIO/2) module for RC2014
Features:
- Full Z80 mode 2 interrupt support (IEI/IEO daisy-chain)
- Compatibility option for both register orders used by RC2014
- Two TTL serial ports for use with FTDI serial adpter cables
- Source of bus clock (option) to potentially reduce board count
- On-board clock option to make it independent of the CPU clock
- Baud rate controllable in software when used with SC102 Z80 CTC
Documentation at [www.scc.me.uk](http://www.scc.me.uk)
Design Drawing
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| ID | Name | Designator | Footprint | Quantity | Mounted |
|---|---|---|---|---|---|
| 1 | 100nF | C1,C2,C3,C4,C5 | CAP-RAD-2.54MM | 5 | Yes |
| 2 | INTEN | P4 | HDR-1X02-A-M-2.54MM | 1 | Yes |
| 3 | Port A | P2 | HDR-1X06-A-M-2.54MM | 1 | Yes |
| 4 | Port B | P3 | HDR-1X06-A-M-2.54MM | 1 | Yes |
| 5 | 100k | R12,R9,R11,R10 | RES-0.3 | 4 | Yes |
| 6 | 2k2 | R1,R2,R3,R4,R5,R6,R7,R8 | RES-0.3 | 8 | Yes |
| 7 | PwrA | JP3 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 8 | PwrB | JP4 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 9 | Z80 SIO/2 | U2 | PDIP-40-0.6 | 1 | Yes |
| 10 | RC2014 BUS | P1A | HDR-1X20-S-M-2.54MM | 1 | Yes |
| 11 | CLKX | X1 | PDIP-08/14 | 1 | Yes |
| 12 | ADDRESS | SW1 | SW-DIP-X6-PIANO | 1 | Yes |
| 13 | 8x10k | RP1 | SIL-9 | 1 | Yes |
| 14 | 74HCT688 | U1 | PDIP-20 | 1 | Yes |
| 15 | Compatibility | P5 | HDR-1X05-S-M-2.54MM | 1 | Yes |
| 16 | CLKA | JP5 | HDR-2X03-S-M-2.54MM | 1 | Yes |
| 17 | CLKB | JP6 | HDR-2X03-S-M-2.54MM | 1 | Yes |
| 18 | IEI | JP1 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 19 | IEO | JP2 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 20 | RC2014 BUS | P1 | HDR-1X39-A-M-R-2.54MM | 1 | Yes |
| 21 | TX | JP7 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 22 | RX | JP8 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 23 | TX2 | JP9 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 24 | RX2 | JP10 | HDR-1X02-S-M-2.54MM | 1 | Yes |
| 25 | 74HCT04 | U3 | PDIP-14 | 1 | Yes |
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