MC97F2664
April 11, 2014 Ver. 1.4
163
SPInSR (SPI 2/3 Status Register) : C4H/C7H, n= 2, 3
7
6
5
4
3
2
1
0
SPIInFR
WCOLn
SS_HIGHn
–
FXCHn
SPInSSEN
–
–
R/W
R
R/W
–
R/W
R/W
–
–
Initial value : 00H
SPIIFRn
When SPI 2/3 Interrupt occurs, this bit becomes
‘1’. If SPI 2/3 interrupt is
enable, this bit is auto cleared by INT_ACK signal. And if SPI 2/3
Interrupt is disable, this bit is cleared when the status register SPnISR is
read, and then access (read/write) the data register SPInDR
Writing “1”
has no effect.
0
SPI 2/3 Interrupt no generation
1
SPI 2/3 Interrupt generation
WCOLn
This bit is set if any data are written to the data register SPInDR during
transfer. This bit is cleared when the status register SPInSR is read, and
then access (read/write) the data register SPInDR
0
No collision
1
Collision
SS_HIGHn
When the SS2/3 pin is configured as input, if
“HIGH” signal comes into
the pin, this flag bit will be set.
0
Cleared when ‘0’ is written
1
No effect when ‘1’ is written
FXCHn
SPI 2/3 port function exchange control bit.
0
No effect
1
Exchange MOSIn and MISOn function
SPInSSEN
This bit controls the SS2/3 pin operation
0
Disable
1
Enable (The corresponding pin should be a normal input)
Содержание MC97F2664
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