国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數資料
型號: W921E840
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-Bit Microcontroller(4位的微控制器)
中文描述: 4-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數: 16/64頁
文件大小: 603K
代理商: W921E840
W921E840
- 16 -
The detail function of the system clock control register (SYSCCR) is shown as below:
SYSCCR register: (address = 000H, default data = 0H, only for W921E841, 843, 844)
b3
b1
b0
1:
0:
0:
1:
1:
f = f
f enable
f disable
f = f
f = f
TM0 SYS1
L
L
The W921E840 provides a crystal or RC oscillation circuit selected by bit0 of INI1 register (refer to
section 7.1) to generate the system clock through external connections. If a crystal oscillator is used,
a crystal or ceramic resonator must be connected to OSCI and
OSCO
, and the capacitor is added
optionally. The oscillator configuration is shown as follows.
OSCI
OSCO
or
OSCI
OSCO
RC type
Crystal Type
6.4 Initial State
The W921E840 is reset either by a power-on reset or by using the external
RESET
pin. The initial
state of the W921E840 after the reset function is executed is described below.
Program counter (PC)
Stack pointer
Special function registers
TM0, TM1, TM2, TM3 input clock
TM0, TM1, TM2, TM3 contents
Input/Output
PM registers
DTMF output
0000H
0FFH
Refer to section 6.2.1
Fosc/8
0FFH
Input mode
1111B
Disable (H-Z)
相關PDF資料
PDF描述
W921E880 4-Bit Microcontroller(4位的微控制器)
W921F840 4-Bit Microcontroller(4位的微控制器)
W9310 Direct Sequence Spread Spectrum Transceiver(直接序列擴展頻譜收發器)
W9320 ADPCM Codec(ADPCM編解碼器)
W9321 ADPCM Codec(ADPCM編解碼器)
相關代理商/技術參數
參數描述
W921E840A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W921E843A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
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