Mr. Do's Wild Ride
From Citylan
| dumper | Lorenzo Fongaro |
| date | 09/05/2020 |
| emulator | |
| dev |
| name | 1702 |
| description | Mr. Do's Wild Ride (alt) |
| year | 1983.09 |
| manufacturer | Universal |
Technical references
CPUs
| QTY | Type | clock | position | function |
|---|---|---|---|---|
| 1x | CF37201N | F5 | 4-bit Microcontroller - main (internal ROM not dumped) - THIS IS A WILD GUESS! see notes | |
| 2x | LH0080A Z80A-CPU-D | A1 S1 | 8-bit Microprocessor - main | |
| 1x | LH0080A Z80A-CPU-D | L7 | 8-bit Microprocessor - sound | |
| 1x | HD465050SP | S5.6 | CRT Controller (CRTC) - Video | |
| 2x | TMS1025 | - | D8 F8 | Input/Output Expander |
| 4x | SN76489AN | N9 NP9 P9 R9 | Digital Complex Sound Generator - sound | |
| 1x | LM324N | - | N10 | Quad Operational Amplifier - sound |
| 1x | oscillator | 9.828MHz | XL1 | |
| 1x | oscillator | 4.000MHz | XL2 |
ROMs
| QTY | Type | position | status |
|---|---|---|---|
| 8x | TMS2764 | 1,2,3,4,6,7,8,9 | dumped - a few need to be redumped |
| 2x | I27128 | 0,5 | dumped |
| 1x | N82S147N | 1b,9c | not dumped yet |
RAMs
| QTY | Type | position |
|---|---|---|
| 5x | MB8128-15 | D1 E1 F1 H1 N7 |
| 1x | MB8128-10 | DE4 |
| 16x | MN4164P | B6 C6 D6 DE6 E6 F6 H6 J6 B7 C7 D7 DE7 E7 F7 H7 J7 |
PLDs
| QTY | Type | position | status |
|---|---|---|---|
| 0x |
Others
1x 28x2 edge connector
2x 8 DIP switches banks(SW1.H9 SW2.H8)
Notes
PCB is marked: "UNIVERSAL 8339A" on component side
No proof at all that custom CF37201N is really a TMS 1000 family chip, even if there are some suspect that it is; mainly due to being manufactured by TI and having 2 support chips (TMS1025N2L) which are spedifically ment for TMS 1000 family.
Files
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PCB component side
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PCB component side notes
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PCB component side detail 1
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PCB component side detail 2
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PCB component side detail 3
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PCB component side detail 4
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PCB component side detail 5
-
ROMs
1702
