參數(shù)資料
型號: ST72E25G2D0
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 73/140頁
文件大小: 1349K
代理商: ST72E25G2D0
ST72104G, ST72215G, ST72216G, ST72254G
38/140
MISCELLANEOUS REGISTERS (Cont’d)
MISCELLANEOUS REGISTER 2 (MISCR2)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7:4 = Reserved
always read as 0
Bit 3 = MOD
SPI Master Output Disable
This bit is set and cleared by software. When set, it
disables the SPI Master (MOSI) output signal.
0: SPI Master Output enabled.
1: SPI Master Output disabled.
Bit 2 = SOD
SPI Slave Output Disable
This bit is set and cleared by software. When set it
disable the SPI Slave (MISO) output signal.
0: SPI Slave Output enabled.
1: SPI Slave Output disabled.
Bit 1 = SSM
SS mode selection
This bit is set and cleared by software.
0: Normal mode - the level of the SPI SS signal is
input from the external SS pin.
1: I/O mode, the level of the SPI SS signal is read
from the SSI bit.
Bit 0 = SSI
SS internal mode
This bit replaces the SS pin of the SPI when the
SSM bit is set to 1. (see SPI description). It is set
and cleared by software.
Table 10. Miscellaneous Register Map and Reset Values
70
0
MOD SOD
SSM
SSI
Address
(Hex.)
Register
Label
7654
3210
0020h
MISCR1
Reset Value
IS11
0
IS10
0
MCO
0
IS01
0
IS00
0
CP1
0
CP0
0
SMS
0
0040h
MISCR2
Reset Value
0000
MOD
0
SOD
0
SSM
0
SSI
0
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