1090
ICCR0—I
2
C Bus Control Register
ICCR1—I
2
C Bus Control Register
H'FF78
H'FF80
IIC0
IIC1
7
ICE
0
R/W
6
IEIC
0
R/W
5
MST
0
R/W
4
TRS
0
R/W
3
ACKE
0
R/W
0
SCP
0
R/W
2
BBSY
0
R/W
1
IRIC
0
R/(W)
*
Bus busy
0
Bus is free
[Clearing condition]
When a stop condition is detected
1
Bus is free
[Clearing condition]
When a stop condition is detected
I
2
C Bus interface interrupt request flag
0
Waiting for transfer, or transfer in progress
1
Interrupt requested
I
2
C Bus Interface Interrupt Enable
0
Interrupts disabled
1
Interrupts enabled
I
2
C Bus Interface Enable
0
I
2
C bus interface module disabled, with SCL and SDA signal pins set to port function
I
2
C bus interface module internal states initialized SAR and SARX can be accessed
1
I
2
C bus interface module enabled for transfer operations (pins SCL and SCA are driving
the bus)
ICMR and ICDR can be accessed
Acknowledge bit judgement selection
0
The value of the acknowledge bit is ignored, and
continuous transfer is performed
1
If the acknowledge bit is 1, continuous transfer is
interrupted
Start condition/stop condition prohibit
0
Writing 0 issues a start or stop condition,
in combination with the BBSY flag
1
Reading always returns a value of 1
Writing is ignored
Master/slave select, transmit/receive select
0
0
Slave receive mode
1
Slave transmit mode
1
0
Master receive mode
1
Master transmit mode
Note:
*
For details see section 18.2.5, I
2
C Bus
Control Register.
Note:
*
For details see section 18.2.5, I
2
C Bus
Control Register.
Note:
*
Only 0 can be written, for flag clearing.
Bit
Initial value
R/W
:
:
:
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...