Toshiba H1 Series User Manual
Page 740
TMP92CZ26A
92CZ26A-737
(17) SBI
Symbol
Name
Address
7 6 5 4 3 2 1 0
BC2 BC1 BC0 ACK
− SCK2
SCK1
SCK0
/SWRMON
R/W R/W
R
R/W
R/W
0 0 0 0 1 0 0 0/1
SBICR1
Serial bus
interface
control
register 1
1240H
(Prohibit
RMW)
Number of transfer bits
000: 8
001: 1
010: 2
011: 3
100: 4
101: 5
110: 6
111: 7
Acknowledge
mode
specification
0: Disable
1: Enable
Always
read as “1”.
Setting for the divisor value “n”
(When writing)
000: 4
001: 5
010: 6
011: 7
100:8
101: 9
110: 10
111: (Reserved)
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
R (receive)/W (Transmit)
SBIDBR
SBI
buffer
register
1241H
(Prohibit
RMW)
Undefined
SA6
SA5
SA4 SA3 SA2 SA1 SA0 ALS
R/W
0
0
0 0 0 0 0 0
I2CAR
I2C BUS
Address
register
1242H
(Prohibit
RMW)
Slave Address setting
Address
recognition
0: Enable
1: Disable
MST TRX BB PIN
AL/SBIM1 AAS/SBIM0
AD0/
SWRST1
LRB/
SWRST0
R/W R/W
R/W R/W R/W R/W R/W R/W
0 0
0 1 0 0 0 0
SBISR
When
read
Serial bus
interface
status
register
I
2
C bus
status
monitor
0: Free
1: Busy
INTSBI
request
monitor
0: Request
1: Cancel
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 receive
bit monitor
0: “0”
1: “1”
SBICR2
When
write
Serial bus
interface
control
register 2
1243H
(Prohibit
RMW)
Master/
Slave status
monitor
0:Slave
1:Master
Transmitter
/ Receiver
status
monitor
0: Receiver
1:
Transmitter
Start/Stop
condition
0: Stop
condition
1: Busy
condition
Cancel
INTSBI
interrupt
request
0:Don’t care
1:Cancel
interrupt
request
Serial bus interface
operation mode selection
00: Port mode
01: (Reserved)
10: I
2
C bus mode
11: (Reserved)
Software reset generate
write “10” and “01”, then an
internal reset signal is
generated.
− I2SBI −
−
−
−
−
−
W R/W
R
R/W
0 0
1 1 1 1 1 0
SBIBR0
Serial bus
interface
baud rate
register 0
1244H
(Prohibit
RMW)
Always
read “0”
IDLE2
0: Stop
1: Operate
Always read as “1”.
Always
write “0”.
SBIEN
−
−
−
−
−
−
−
R/W
R
0
0
0 0 0 0 0 0
SBICR0
Serial bus
interface
control
register 0
1247H
(Prohibit
RMW)
SBI
operation
0:disable
1:enable
Always read as “0”.