
1
OUTLINE
S1C33L01 PRODUCT PART
EPSON
A-1
1 Outline
The S1C33L01 is a Seiko Epson original 32-bit microcomputer with a built-in LCD controller. It features high
speed, low power and low-voltage operation and is most suitable for portable equipment that needs display function,
such as information terminals, E-mail terminals, electronic dictionaries.
The S1C33L01 consists of the S1C33000 32-bit RISC type CPU as the core, a bus control unit,a DMA controller, an
interrupt controller, timers, serial interface circuits, an A/D converter, ROM and RAM. The LCD controller unit is
configured with the SEIKO EPSON SID13705 LCD controller and 40K bytes of SRAM display buffer (VRAM),
and it allows driving of various LCD panels .
The S1C33L01 provides a DSP function, by using the internal MAC (multiplication and accumulation) operation
function with the A/D converter, it makes it possible to design simply speech recognition and voice synthesis
systems.
1.1 Features
Core CPU
Seiko Epson original 32-bit RISC CPU S1C33000 built-in
Basic instruction set: 105 instructions (16-bit fixed size)
Sixteen 32-bit general-purpose register
32-bit ALU and 8-bit shifter
Multiplication/division instructions and MAC (multiplication and accumulation) instruction are available
20 ns of minimum instruction execution time at 50 MHz operation
Internal memory
ROM:
128K bytes
RAM:
8K bytes
VRAM: 40K bytes
Internal peripheral circuits
Oscillation circuit:
High-speed (OSC3) oscillation circuit 33 MHz max.
Crystal/ceramic oscillator or external clock input
Low-speed (OSC1) oscillation circuit 32.768 kHz typ.
Crystal oscillator or external clock input
LCD controller:
SID13705 with 40KB VRAM
4 or 8-bit monochrome/color LCD interface
Active matrix TFT/D-TFD interface
2, 4 or 16-level (1, 2 or 4 bit-per-pixel) gray-scale display
2, 4, 16 or 256-level (1, 2, 4 or 8 bit-per-pixel) color display
Resolution examples: 640
× 480 dots with 1bpp color dipth
640
× 240 dots with 2bpp color dipth
320
× 240 dots with 4bpp color dipth
320
× 160 dots with 8bpp color dipth
Timers:
8-bit timer
4 channels
16-bit timer
6 channels
Watchdog timer
(16-bit timer 0's function)
Clock timer
1 channel (with alarm function)
Serial interface:
2 channels (clock-synchronous system, asynchronous system and IrDA
interface are selectable)
A/D converter:
10 bits
× 8 channels
DMA controller:
High-speed DMA
4 channels
Intelligent DMA
128 channels