Difference between revisions of "SIMPLE-Z80"
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* 95x95mm card | * 95x95mm card | ||
* (4) 6-32 mounting holes | * (4) 6-32 mounting holes | ||
| + | |||
| + | == Headers == | ||
| + | |||
| + | === EPROM/EEPROM Select Jumpers === | ||
| + | |||
| + | {| class="wikitable" | ||
| + | ! PART | ||
| + | ! PIN 1 | ||
| + | ! PIN 27 | ||
| + | |- | ||
| + | | 27128 EPROM | ||
| + | | VPP (5V) | ||
| + | | PGM (5V) | ||
| + | |- | ||
| + | | 27C256 EPROM | ||
| + | | VPP (5V) | ||
| + | | A14 (GND) | ||
| + | |- | ||
| + | | 27C512 EPROM | ||
| + | | A15 (GND) | ||
| + | | A14 (GND) | ||
| + | |- | ||
| + | | SST27SF256 EEPROM | ||
| + | | VPP (5V) | ||
| + | | A14 (GND) | ||
| + | |- | ||
| + | | SST27SF512 EEPROM | ||
| + | | A15 (GND) | ||
| + | | A14 (GND) | ||
| + | |- | ||
| + | |} | ||
== Mechanicals == | == Mechanicals == | ||
Revision as of 16:12, 12 September 2022
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Features
- Build of Grant Searles's Simple Z80 CPU
- Runs BASIC
- Z80 CPU
- 56KB SRAM (uses 128KB parts)
- EPROM/EEPROM
- 68B50 Serial Port (ACIA)
- RS-232 port
- Header for FTDI
- Reset switch with optional Power Supervisor
- 95x95mm card
- (4) 6-32 mounting holes
Headers
EPROM/EEPROM Select Jumpers
| PART | PIN 1 | PIN 27 |
|---|---|---|
| 27128 EPROM | VPP (5V) | PGM (5V) |
| 27C256 EPROM | VPP (5V) | A14 (GND) |
| 27C512 EPROM | A15 (GND) | A14 (GND) |
| SST27SF256 EEPROM | VPP (5V) | A14 (GND) |
| SST27SF512 EEPROM | A15 (GND) | A14 (GND) |
Mechanicals
