參數(shù)資料
型號: M37280MKH-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64
封裝: 0.750 INCH, PLASTIC, SDIP-64
文件頁數(shù): 98/171頁
文件大?。?/td> 1465K
代理商: M37280MKH-XXXSP
32
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37280MFH–XXXSP, M37280MKH–XXXSP
M37280EKSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
Fig. 8.5.3 Serial I/O Mode Register
b7 b6 b5 b4 b3 b2 b1 b0
Serial I/O mode register (SM) [Address 021316]
B
Name
Functions
After reset RW
Serial I/O Mode Register
0, 1 Internal synchronous
clock selection bits
(SM0, SM1)
b1 b0
0 0: f(XIN)/8 or f(XCIN)/8
0 1: f(XIN)/16 or f(XCIN)/16
1 0: f(XIN)/32 or f(XCIN)/32
1 1: f(XIN)/64 or f(XCIN)/64
2
Synchronous clock
selection bit (SM2)
3
Port function
selection bit (SM3)
6
5
Transfer direction
selection bit (SM5)
0: P11, P13
1: SCL1, SDA1
0: External clock
1: Internal clock
0: LSB first
1: MSB first
0
RW
R W
RW
4
Port function
selection bit (SM4)
0: P12, P14
1: SCL2, SDA2
7
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
0R —
SIN pin switch bit
(SM6)
0: P17 is SIN pin.
1: P72 is SIN pin.
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