Epson Research and Development

Page 113

Vancouver Design Center

 

 

 

RAMDAC Palette Data Register

 

 

 

 

 

REG[2Eh] or REG[2Fh]

 

 

 

 

 

 

RW

 

 

 

 

 

 

 

 

 

RAMDAC

RAMDAC

 

RAMDAC

RAMDAC

RAMDAC

RAMDAC

RAMDAC

RAMDAC

Data Bit 7

Data Bit 6

 

Data Bit 5

Data Bit 4

Data Bit 3

Data Bit 2

Data Bit 1

Data Bit 0

 

 

 

 

 

 

 

 

 

bits 7-0

 

RAMDAC Palette Data Bits [7:0]

 

 

 

 

 

 

A CPU read or write to this register will generate a DACRD# or DACWR# pulse and DACRS1 = 0

 

 

and DACRS0 = 1 to the external RAMDAC for a palette data register access. The RAMDAC data

 

 

must be transferred directly between the system data bus and the external RAMDAC through either

 

 

data bus bits [7:0] in a Little-Endian system or data bus bits [15:8] in a Big-Endian system.

Hardware Functional Specification

S1D13504

Issue Date: 01/01/30

X19A-A-002-18

Page 119
Image 119
Epson S1D13504 manual Ramdac Palette Data Register, REG2Eh or REG2Fh