Rev. 2.0, 11/00, page 525 of 1037
Bit 0: Format Select (FS)
Used together with the FSX bit in SARX to select the communication format.
•
I
2
C bus format: addressing format with acknowledge bit
•
Synchronous serial format: non-addressing format without acknowledge bit, for master
mode only
The FS bit also specifies whether or not SAR slave address recognition is performed in slave
mode.
SAR
Bit 0
SARX
Bit 0
FS
FSX
Operating Mode
0
I
2
C bus format
•
SAR and SARX slave addresses recognized
0
1
I
2
C bus format
(Initial value)
•
SAR slave address recognized
•
SARX slave address ignored
0
I
2
C bus format
•
SAR slave address ignored
•
SARX slave address recognized
1
1
Clock synchronous serial format
•
SAR and SARX slave addresses ignored
Summary of Contents for Hitachi H8S/2191
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