Difference between revisions of "SIMPLE-6809"
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{| class="wikitable" | {| class="wikitable" | ||
! PART | ! PART | ||
| − | ! PIN 1 | + | ! J2 PIN 1 |
| − | ! PIN 27 | + | ! J5 PIN 27 |
|- | |- | ||
| 27128 EPROM | | 27128 EPROM | ||
Revision as of 16:39, 12 September 2022
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Contents
Features
- Build of Grant Searles's Simple 6809 CPU
- Runs BASIC
- 6809 CPU
- 32KB SRAM
- 16KB 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
Memory Map
- 0x0000-0x7FFF 32KB SRAM
- 0x8000-0x9FFF Free Space (8KB)
- 0xA000-0xBFFF Serial (ACIA)
- 0xC000-0xCFFF 16KB EPROM
Headers
EPROM/EEPROM Select Jumpers
| PART | J2 PIN 1 | J5 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
