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TMP92CM22
2007-02-16
92CM22-176
Serial Bus Interface Status Register
7 6 5 4 3 2 1 0
Bit symbol MST TRX BB PIN AL AAS AD0 LRB SBI0SR
(1243H)
Read/Write R
After reset 0 0 0 1 0 0 0 0
Read-
modify-write
instruction is
prohibited.
Function Master/
slave
status
selection
monitor
Transmitter/
receiver
status
selection
monitor
I
2
C bus
status
monitor
INTSBE0
interrupt
request
monitor
Arbitration
lost
detection
monitor
0: −
1: Detected
Slave address
match
detection
monitor
0: Undetected
1: Detected
GENERAL
CALL
detection
monitor
0: Undetected
1: Detected
Last
received bit
monitor
0: 0
1: 1
0 Last received bit was 0.
1 Last received bit was 1.
0 Undetected
1 GENERAL CALL detected
0 Undetected
1
Slave address match or
GENERAL CALL detected
0 −
1 Arbitration lost
0 Interrupt requested
1 Interrupt released
0 Free
1Busy
0 Receiver
1 Transmitter
0Slave
1Master
Note: Writing in this register functions as SBI0CR2.
Figure 3.10.5 Register for I
2
C Bus Mode
Last received bit monitor
GENERAL CALL detection monitor
Slave address match detection monitor
Arbitration lost detection monitor
INTSBE0 interrupt request monitor
Transmitter/receiver status monitor
Master/slave status monitor
I
2
C bus status monitor