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參數(shù)資料
型號: W742S81A
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4-BIT, FLASH, 3.58 MHz, MICROCONTROLLER, PQFP100
文件頁數(shù): 7/47頁
文件大小: 242K
代理商: W742S81A
W742S81A
Publication Release Date: March 2003
- 7 -
Revision A1
0000H
:
16 bits
16384 x 16 bits
07FFH
0800H
:
0400H
:
:
:
Each element (4 bits) of the look-up table
03FFH
0FFFH
0C00H
:
0BFFH
1st page
3C00H
:
3FFFH
3BFFH
:
3800H
2nd page
8th page
Look-up0000H
0F:
Look-up1000H
1F:
Look-up2000H
2F:
Look-up3000H
3F:
Look-upE000H
EF:
Look-upF000H
FF:
:
:
:
:
Figure 6-1 Program Memory Organization
6.3.1 ROM Page Register (ROMPR)
The ROM page register is organized as a 4-bit binary register. The bit descriptions are as follows:
3
Note: W means write only.
Bit 3 is reserved.
Bit 2, Bit 1, Bit 0 ROM page preselect bits:
000 = ROM page 0 (0000H - 07FFH)
001 = ROM page 1 (0800H - 0FFFH)
010 = ROM page 2 (1000H - 17FFH)
011 = ROM page 3 (1800H - 1FFFH)
100 = ROM page 4 (2000H - 27FFH)
101 = ROM page 5 (2800H - 2FFFH)
110 = ROM page 6 (3000H - 37FFH)
W
W
0
1
2
ROMPR
W
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