Page 10 Epson Research and Development
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S1D13705 Hardware Functional Specification
X27A-A-001-10 Issue Date: 02/02/01
2 Features

2.1 Integrated Frame Buffer

Embedded 80K byte SRAM display buffer.

2.2 CPU Interface

Direct support of the following interfaces:
Hitachi SH-3.
Hitachi SH-4.
Motorola M68K.
MPU bus interface using WAIT# signal.
Direct memory mapping of internal regis t ers.
Single level CPU write buffer.
Registers are mapped into upper 32 bytes of 128K byte address space.
The complete 80K byte display buffer is directly and contiguously available through the
17-bit address bus.

2.3 Display Support

4/8-bit monochrome LCD interfac e.
4/8-bit color LCD interface.
Single-panel, single-drive passive displays.
Dual-panel, dual-drive passive displays.
Active Matrix TFT / D-TFD interface
Register level support for EL panels.
Example resolutions:
640x480 at a color depth of 2 bpp
640x240 at a color depth of 4 bpp
320x240 at a color depth of 8 bpp