Difference between revisions of "SIMPLE-6502"
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* Build of [http://searle.x10host.com/6502/Simple6502.html Grant Searles's Simple 6502 CPU] | * Build of [http://searle.x10host.com/6502/Simple6502.html Grant Searles's Simple 6502 CPU] | ||
− | ** Runs OSI BASIC | + | ** Runs Microsoft (OSI) BASIC |
* 6502 CPU | * 6502 CPU | ||
+ | * 0.9216 or 1.8432 MHz clock | ||
* 32KB SRAM | * 32KB SRAM | ||
* 16KB EPROM/EEPROM | * 16KB EPROM/EEPROM |
Revision as of 16:36, 12 September 2022
Contents
Features
- Build of Grant Searles's Simple 6502 CPU
- Runs Microsoft (OSI) BASIC
- 6502 CPU
- 0.9216 or 1.8432 MHz clock
- 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 | 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) |