TMP91C824
91C824-155
Serial Bus Interface Status Register
7 6 5 4 3 2 1 0
bit
Symbol
MST TRX BB PIN AL AAS AD0 LRB
Read/Write R
After
reset
0 0 0 1 0 0 0 0
Function
Master/
Slave
status
monitor
Transmitter/
Receiver
status
monitor
I
2
C bus
status
monitor
INTSBI2
interrupt
request
monitor
Arbitration
lost
detection
monitor
0:
−
1: Detected
Slave
address
match
detection
monitor
0:
−
1: Detected
GENERAL
CALL
detection
monitor
0:
−
1: Detected
Last
received bit
monitor
0: 0
1:1
Last received bit monitor
0
Last received bit was 0
1
Last received bit was 1
GENERAL CALL detection monitor
0
−
1
GENERAL CALL detected
Slave address match detection monitor
0
−
1
Slave address match or GENERAL
CALL detected
Arbitration lost detection monitor
0
−
1
Arbitration lost
INTSBI interrupt request monitor
0
Interrupt requested
1
Interrupt canceled
I
2
C bus status monitor
0
Free
1
Busy
Transmitter / Receiver status monitor
0
Receiver
1
Transmitter
Master / Slave status monitor
0
slave
1
Master
SBI0SR
(0243H)
Prohibit
Read-
modify-write
Note1: Writing in this register functions as SBI0CR2.
Figure 3.10.5
Registers for the I
2
C Bus Mode