Toshiba H1 Series - Manual (Page 352)

TMP92CZ26A
92CZ26A-349
Serial Bus Interface Status Register
7 6 5 4 3 2 1 0
Bit symbol MST TRX BB PIN AL AAS AD0 LRB SBISR
(1243H) Read/Write R
After reset 0 0 0 1 0 0 0 0
Prohibit
Read-modif
y-write
Function Master/
Slave status
monitor
0:Slave
1:Master
Transmitter/
Receiver
status
monitor
0:Receiver
1:Tranmitter
I 2 C bus
status
monitor
0:Free
1:Busy
INTSBI
interrupt
request
monitor
0: Interrupt
requested
1: Interrupt
canceled
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
Last received bit monitor
0 Last received bit was 0
1 Last received bit was 1
GENERAL CALL detection monitor
0 Undetected
1 GENERAL CALL detected
Slave address match detection monitor
0 Slave address don’t match or Undetected
1
Slave address match or GENERAL
CALL detected
Arbitration lost detection monitor
0
−
1 Arbitration lost
Note1: Writing in this register functions as SBICR2.
Note2: The initialdata SBISR is “1” if SBI operation is enable (SBICR0
=“1”). If SBI operation is disable
(SBICR0 =“0”), the initialdata of SBISR is “0”.
Figure 3.15.6 Registers for the I
2
C bus mode