TCU981B Datasheet, PDF (1/9 Pages) Tontek Design Technology – TCU981B 8 Bits TV game system

Reference Only

Version j 1.2

Datej2010/08/05


TCU981B 8 Bits TV game system


General Descriptionj

TCU981B is a single chip microprocessor for use in TV game. It is composed of CPU(6502),
PPU(picture processor unit), PSG(programmable sound generator), 2KB working RAM, 2KB
video RAM, DMA unit, and other control circuit.
The IC apply to display variable animated cartoon. In background picture, it supply 2-page
size in the screen; In sprite picture, it also supply 64 sprites per frame. Besides, the X and Y
coordinate positions is programmable to display the actual area (Resolution : 256 ^x 240 pixels).
The IC apply to multi-mix sound output. It with 5 channels programmable sound generator,
include 3 rhythm channels, 1 noise channel, and 1 PCM voice channel.
The IC apply to following TV system : include PAL-B , NTSC , PAL-M , and PAL-N. System
select by bonding option.
The IC apply to following interface product : include keyboard, joystick, mouse, light gun, etc.

Featuresj

¼
8 Bits single chip TV game system.
¼
Built-in 6502 CPU.
¼
Built-in PPU(picture processor unit).
¼
Built-in PSG(programmable sound generator).
¼
Built-in RAM: Working RAM(2K Bytes) & Video RAM(2K Bytes).
¼
Built-in DMA unit.
¼
Apply to many kind TV system(PAL-B, NTSC, PAL-M, PAL-N)
¼
TV system can select by bonding option.

¼
5 sound channels(3 rhythm, 1 noise, and 1 voice).

¼
Few external components needed.
¼
Simple application circuit.
¼
Low power consumption.


Block Diagramj
OPTION CK21M CK21B
OP1
D[7:0]
RWB
ROMS
A[14:0]
DMA
CPU
6502
TIMING
GENERATOR
AUDIO
AMP
OUTPUT
DECODER
PSG
PROCESSOR
WORKING
RAM
IRQ
CONTROLLER
PERIPHERAL
INTERFACE
IRQB
TO JOYSTICK




VIDEO
VIDEO
OUTPUT
PPU
VIDEO
RAM
PRA10
RC
AD[12:8]
VA[7:0]
VOE
VRW
AD[7:0]