Atari 130XE
XL/XE with 128 KB banked through PORTB, FREDDIE and the ECI port.
Open the Atari 130XE in Retro Bench- Also
- 130XE
- Year
- 1985
- CPU
- 6502C (SALLY) @ 1.79 MHz
- RAM
- 128 KB (sixteen 4164 on the Sams board)
- ROM
- OS ROM 16 KB, BASIC 8 KB (built in)
- Video
- ANTIC + GTIA
- Sound
- POKEY, 4 voices
- OS
- Atari OS XL/XE
Chips
| Chip | Where | Role |
|---|---|---|
| SALLY 6502C (Atari XL/XE CPU, C014806) | U8 | CPU for the 600XL, 800XL and 130XE. HALT on pin 35, R/W moved to pin 36. |
| ANTIC CO12296 / C021697 display processor | U7 | Display list processor: fetches screen data by DMA, halts the CPU, makes the NMI for VBlank and DLI, refreshes DRAM. |
| CTIA C012295 / GTIA C014805 | U17 | Color, luminance and sync out, player/missile graphics, triggers and console keys; divides the color clock for ANTIC. |
| POKEY C012294 | U22 | Four-voice sound, keyboard scan, eight pot (paddle) inputs and the SIO serial port. |
| 6520 PIA | U23 | Keyboard, cassette 1, IEEE-488 data (PET) |
| MMU C061618 (memory management PLA) | U3 | Address decoder: chip selects for GTIA, POKEY, PIA, OS ROM, BASIC, DRAM and cartridge. |
| FREDDIE C061991 (XE DRAM address controller) | U6 | DRAM address multiplexer on the 130XE. |
| 4164 DRAM 64K×1 | U9-U16, U26-U33 | Main RAM (8 chips = 64 KB) |
| 4464 / 41464 DRAM 64K x 4 | Dynamic RAM, 64K x 4. Main RAM on the BBC Master; reported on later 130XE boards. |
Ports and connectors
- SIO peripheral port (13-pin), 13-pin trapezoid, Atari proprietary
- Controller port 1 (DE-9), DE-9 male
- Controller port 2 (DE-9), DE-9 male
- Monitor jack (DIN-5, J2), DIN-5 180° female
- Cartridge slot (30 contacts), Card edge 15/30, 0.1 in
- Enhanced Cartridge Interface (ECI, J4B), Card edge 7/14, beside the cartridge slot
- Power in (+5 V DC), DIN-7 270° female
Power rails
| Rail | Expect | Measure at |
|---|---|---|
| +5 V | +5.0 V (Sams) | atari-power pins 1, 4, 6 (power DIN); ANTIC pin 21; GTIA pin 27; POKEY pin 17 |
Symptoms
- Dead, black screen or random crashes after a power-up: check 4164, 6502C
- Red screen or memory test failures: check 4164
- Dead machine, black screen: check 6502C, ANTIC, GTIA, MMU
- No display, or blank or scrambled picture: check ANTIC, GTIA
- No color or wrong colors: check GTIA
- Dead keys: check POKEY
- No sound or SIO fails: check POKEY
- No joysticks, or no disk drive: check PIA
- No BASIC, or BASIC will not turn off: check MMU, PIA