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Epson Research and Development
Vancouver Design Center
S1D13505
Hardware Functional Specification
X23A-A-001-14
Issue Date: 01/02/02
4 Internal Description
4.1 Block Diagram Showing Datapaths
4.2 Block Descriptions
4.2.1 Register
The Register block contains all the register latches
4.2.2 Host Interface
The Host Interface (I/F) block provides the means for the CPU/MPU to communicate with the
display buffer and internal registers via one of the supported bus interfaces.
4.2.3 CPU R/W
The CPU R/W block synchronizes the CPU requests for display buffer access. If SwivelView is
enabled, the data is rotated in this block.
Clocks
LCD
Memory
Controller
16-bit FPM/EDO-DRAM
LCD
Power Save
Register
CRTC
Look-
I/F
CPU/MPU
Host
I/F
CPU
R/W
Display
FIFO
CRT
Cursor
FIFO
Up
Tables
DAC