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參數資料
型號: W921E843A
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT MICROCONTROLLER
中文描述: 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數: 12/58頁
文件大小: 449K
代理商: W921E843A
W921E840A/W921C840
- 12 -
6.2 RAM Memory Map
000H
Speical Control Registers
Serial Buffer Registers
Stack Registers or
General Registers
General Registers
03FH
040H
04FH
050H
07FH
080H
0FFH
100H
17FH
180H
1FFH
000
063
064
079
080
127
128
255
256
383
384
511
Working Registers
General Registers
Serial Buffer Registers or
(040H to
0FFH)
(050H to
14EH)
General
Registers
Serial
Buffer
Registers
Stack
Registers
(040H to
1FFH)
(512 x 4-bit)
6.2.1 Special Control Register Area
There are 64
×
4-bit registers in the special control register area. All control registers such as DTMF
control register, serial speed control register, ..., etc. are in this area. Please refer to the following
table for detailed register map.
ADDR.
000H
001H
002H
003H
004H
005H
006H
007H
008H
009H
DESCRIPTION
ABBREVIATION
(SYSCCR)
-
-
(P4PH)
(P4TP)
(P6PH)
(P6TP)
(PABCDPH)
(PABCDTP)
(SRLNR)
INITIAL VALUE
00H
Reserved or System Clock Control Register
Reserved
Reserved
Port P4 Pull High Resistor Register
Port P4 Output Type Register
Port P6 Pull High Resistor Register
Port P6 Output Type Register
Port PABCD Pull High Resistor Register
Port PABCD Output Type Register
Serial LSB Nibble Register
-
-
00H
00H
00H
00H
00H
00H
02H
相關PDF資料
PDF描述
W921C880 4-Bit Microcontroller(4位微控制器)
W921E880A 4-Bit Microcontroller(4位微控制器)
W921E840 4-Bit Microcontroller(4位的微控制器)
W921E880 4-Bit Microcontroller(4位的微控制器)
W921F840 4-Bit Microcontroller(4位的微控制器)
相關代理商/技術參數
參數描述
W921E880 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W921E880A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W925C240 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Controller
W925C625 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER
W925E240 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Controller