Rev. 1.0, 09/01, page 713 of 904
Bit
Bit Name
Initial Value R/W
Description
6
SCP
1
W
Start Condition/Stop Condition Prohibit
The SCP bit controls the issue of start/stop conditions in
master mode.
To issue a start condition, write 1 in BBSY and 0 in SCP. A
retransmit start condition is issued in the same way. To
issue a stop condition, write 0 in BBSY and 0 in SCP. This
bit is always read as 1. If 1 is written, the data is not stored.
5
SDAO
1
R/W
Monitors the output level of SDA.
0: When reading, SDA pin outputs low.
1: When reading, SDA pin outputs high.
The write value must always be 1.
4
1
R/W
Reserved
The write value must always be 1.
3
SCLO
1
R
This bit monitors SCL output level. When reading and
SCLO is 1, SCL pin outputs high. When reading and SCLO
is 0, SCL pin outputs low.
2
1
Reserved
This bit is always read as 1.
1
IICRST
0
R/W
IIC control part reset
This bit resets control parts except for I
2
C registers. If this
bit is set to 1 when hang-up is occurred because of
communication failure during I
2
C operation, I
2
C control part
can be reset without setting ports and initializing registers.
0
1
Reserved
This bit is always read as 1.
16.3.3
I
2
C Bus Mode Register (ICMR)
ICMR is an 8-bit readable/writable register that selects whether the MSB or LSB is transferred
first, performs master mode wait control, and selects the transfer bit count.
Содержание H8S/2376 F-ZTAT
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