参数资料
型号: M37225ECSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件页数: 16/127页
文件大小: 1897K
代理商: M37225ECSP
111
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37225M6/M8/MA/MC–XXXSP
M37225ECSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
Address 00DC16
b7 b6 b5 b4 b3 b2 b1 b0
Serial I/O mode register (SM) [Address 00DC16]
BNameFunctions
After reset RW
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
0
RW
R W
RW
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.”
0R —
Serial input pin
selection bit (SM6)
0: Input signal from SIN pin.
1: Input signal from SOUT pin.
0
A-D Control Register
b7 b6 b5 b4 b3 b2 b1 b0
A-D control register (ADCON) [Address 00DF16]
B
After reset RW
0
to
2
Analog input pin selection
bits
(ADIN0 to ADIN2)
NameFunctions
b2 b1 b0
0
0 : A-D1
0
1 : A-D2
0
1
0 : A-D3
0
1
1 : A-D4
1
0
0 : A-D5
1
0
1 : A-D6
1
0 : A-D7
1
1 : A-D8
4
VCC connection selection bit
(ADVREF)
0: OFF
1: ON
0
6
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is indeterminate.
RW
R —
3
A-D conversion completion
bit (ADSTR)
0: Conversion in progress
1: Convertion completed
1
RW
7
Fix this bit to “0.”
RW
00
Indeterminate
5
Fix this bit to “0.”
RW
0
Address 00DF16
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