Difference between revisions of "LB-65CXX-01"
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== PLD == | == PLD == | ||
| + | |||
| + | <pre> | ||
| + | Name LB-65CXX-01_PLD; | ||
| + | Partno ATF16V8B; | ||
| + | Date 09/09/20; | ||
| + | Revision 01; | ||
| + | Designer DOUG G; | ||
| + | Company LAND BOARDS LLC; | ||
| + | Assembly U00; | ||
| + | Location Connellsville, PA; | ||
| + | Device G16V8; | ||
| + | |||
| + | /* | ||
| + | 65C816 Control | ||
| + | */ | ||
| + | |||
| + | |||
| + | /* Control inputs */ | ||
| + | PIN 1 = CLK; | ||
| + | PIN 2 = CPUA12; | ||
| + | PIN 3 = CPUA13; | ||
| + | PIN 4 = CPUA14; | ||
| + | PIN 5 = CPUA15; | ||
| + | PIN 6 = CPUREAD; | ||
| + | PIN 8 = VPA; | ||
| + | PIN 9 = VDA; | ||
| + | |||
| + | /* Counter data inputs */ | ||
| + | PIN 13 = !IOCS; | ||
| + | PIN 14 = !ROMCS; | ||
| + | PIN 15 = !MEMRD; | ||
| + | PIN 16 = !RAMCS; | ||
| + | PIN 18 = RDY; | ||
| + | |||
| + | ROMCS = CPUA15 & CPUA14 & CPUA13 & CPUA12 & CPUREAD & VDA | ||
| + | # CPUA15 & CPUA14 & CPUA13 & CPUA12 & CPUREAD & VPA; | ||
| + | |||
| + | RAMCS = !CPUA15 & VDA | ||
| + | # !CPUA15 & VPA; | ||
| + | |||
| + | IOCS = CPUA15 & !CPUA14 & !CPUA13 & !CPUA12 & VDA; | ||
| + | |||
| + | MEMRD = CPUREAD & CLK; | ||
| + | |||
| + | /* | ||
| + | RDY = VPA | ||
| + | # VDA; | ||
| + | */ | ||
| + | |||
| + | </pre> | ||
Revision as of 18:42, 18 August 2024
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- 65C02 or 65C816 CPU
- 2 MHz Oscillator on card
- Reset switch/power monitor
- Address decoder PLD drives RAM/ROM/IO chip selects
- 100x50mm card
PLD
Name LB-65CXX-01_PLD; Partno ATF16V8B; Date 09/09/20; Revision 01; Designer DOUG G; Company LAND BOARDS LLC; Assembly U00; Location Connellsville, PA; Device G16V8; /* 65C816 Control */ /* Control inputs */ PIN 1 = CLK; PIN 2 = CPUA12; PIN 3 = CPUA13; PIN 4 = CPUA14; PIN 5 = CPUA15; PIN 6 = CPUREAD; PIN 8 = VPA; PIN 9 = VDA; /* Counter data inputs */ PIN 13 = !IOCS; PIN 14 = !ROMCS; PIN 15 = !MEMRD; PIN 16 = !RAMCS; PIN 18 = RDY; ROMCS = CPUA15 & CPUA14 & CPUA13 & CPUA12 & CPUREAD & VDA # CPUA15 & CPUA14 & CPUA13 & CPUA12 & CPUREAD & VPA; RAMCS = !CPUA15 & VDA # !CPUA15 & VPA; IOCS = CPUA15 & !CPUA14 & !CPUA13 & !CPUA12 & VDA; MEMRD = CPUREAD & CLK; /* RDY = VPA # VDA; */
