參數(shù)資料
型號(hào): M37221M4H-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù): 35/112頁
文件大?。?/td> 1207K
代理商: M37221M4H-XXXSP
29
Rev. 1.0
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37221M4H/M6H/M8H/MAH–XXXSP/FP
M37221EASP/FP
MITSUBISHI MICROCOMPUTERS
Fig. 8.5.3 Serial I/O Mode Register
b7 b6 b5 b4 b3 b2 b1 b0
Serial I/O mode register (SM) [Address 00DC16]
BName
Functions
Serial I/O Mode Register
0, 1Internal synchronous
clock selection bits
(SM0, SM1)
b1 b0
0 0: f(XIN)/4
0 1: f(XIN)/16
1 0: f(XIN)/32
1 1: f(XIN)/64
2
Synchronous clock
selection bit (SM2)
3
Serial I/O port
selection bit (SM3)
6
5
Transfer direction
selection bit (SM5)
0: P20, P21
1: SCLK, SOUT
0: External clock
1: Internal clock
0: LSB first
1: MSB first
4
Fix this bit to “0.”
7
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
After reset RW
0
0R W
RW
R W
RW
0R —
Serial input pin
selection bit (SM6)
0: Input signal from SIN pin.
1: Input signal from SOUT pin.
0
相關(guān)PDF資料
PDF描述
M37221M8H-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37221M6H-XXXSP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
M37221M6H-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37221EASP 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP42
M37221EAFP 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDSO42
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