S1D13503 Epson Electronics America, Inc., S1D13503 Datasheet - Page 255

• Manufacturer Part Number: S1D13503
• Description: S1d13503 Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Epson Research and Development
Vancouver Design Center
2.2 PAL Equations
2.3 S1D13503 Default Setup
MC68340 Interface Considerations
Issue Date: 01/01/30
The PAL is programmed with the following equations:
1.
2.
3.
Configuration Options
1.
2.
3.
4.
5.
6.
Where x = don’t care; 1 = pull-up with a 10K resistor; 0 = no pull-up resistor
Note
The states of these data pins are internally latched during RESET.
Register Setting
AUX[1] bit 1 = 0 for 16-bit memory interface (must be 16-bit with a 16-bit bus).
With direct-mapping I/O occupying locations from 00000000h to 0000000Fh and A4 to A9 decoded internally to
S1D13503;
IOCS# = !(!CS3 & !A17 & !A16 & !A15 & !A14 & !A13 & !A12 & !A11 & !A10)
With memory locations from 00020000h to 003FFFFh and A17 to A19 decoded internally to S1D13503;
MEMCS# = CS3
BHE# = SIZ0 & !A0
VD15 - VD13 = 001
VD12 - VD4 = 000000xxx
VD3 = 1
VD2 = 1
VD1 = 1
VD0 = 1
BHE# becomes valid for two conditions:
1. 16-bit or 32-bit cycle, i.e., SIZ0=0
2. 8-bit cycle with odd byte access, i.e., SIZ0=1 and A0=1;
memory decoding for locations 20000h - 3FFFFh
I/O decoding for locations 0000000000b - 0000001111b
byte swap of high and low bytes
MC68K interface
direct-mapping I/O
16-bit bus interface
X18A-G-004-04
S1D13503
Page 7