Description
- PIOC (Programmable IO Controller).
- One memory word is 22 bits as for ordinary ND-100 memory (16 data bits + 6 ECC bits).
- Using 22 pieces of DRAM chip for the memory, 65536 x 1 bit x 22 pieces (total 176 KB).
- Print: E ECO: S
- PCB size 367 x 280 mm, 4 layers
- Release date xx. xxx. xxxx
Chipset
LEDs
- LD2 - HALT (red), MC68000 halt
- LD1 - RESET (red), MC68000 reset
- LD3 - MCYC (yellow), active memory cycle
Straps
Switches
- TH1 - Device number
- TH2 - Lower memory address limit, low value
- TH3 - Lower memory address limit, high value
Connectors
- (A) Channels 2 and 3
- (B) Channels 0 and 1
- (C) Standard ND-100 system bus
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Component side, PCB version E, HM4864
Solder side, PCB version E, HM4864
Component side, PCB version E, TMS4164
Solder side, PCB version E, TMS4164
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