Rev. 1.0, 09/01, page 709 of 904
Vcc
Vcc
SCL in
out
SCL
SDA in
out
SDA
SCL
(Master)
(Slave 1)
(Slave 2)
SDA
SCL in
out
SCL
SDA in
out
SDA
SCL in
out
SCL
SDA in
out
SDA
Figure 16.2 External Circuit Connections of I/O Pins
16.2
Input/Output Pins
Table 16.1 summarizes the input/output pins used by the I
2
C bus interface.
Table 16.1
I
2
C Bus Interface Pins
Name
Abbreviation
I/O
Function
Serial clock
SCL0
I/O
IIC2_0 serial clock input/output
Serial data
SDA0
I/O
IIC2_0 serial data input/output
Serial clock
SCL1
I/O
IIC2_1 serial clock input/output
Serial data
SDA1
I/O
IIC2_1 serial data input/output
Note:
The pin symbols are represented as SCL and SDA; channel numbers are omitted in this
manual.
16.3
Register Descriptions
The I
2
C bus interface has the following registers. For details on register addresses and register
states during each processing, refer to appendix A, Internal I/O Register.
•
I
2
C bus control register A_0 (ICCRA_0)
•
I
2
C bus control register B_0 (ICCRB_0)
•
I
2
C bus mode register_0 (ICMR_0)
•
I
2
C bus interrupt enable register_0 (ICIER_0)
Содержание H8S/2376 F-ZTAT
Страница 24: ...Rev 1 0 09 01 page xxiv of xliv ...
Страница 38: ...Rev 1 0 09 01 page xxxviii of xliv ...
Страница 44: ...Rev 1 0 09 01 page xliv of xliv ...
Страница 60: ...Rev 1 0 09 01 page 16 of 904 ...
Страница 96: ...Rev 1 0 09 01 page 52 of 904 ...
Страница 116: ...Rev 1 0 09 01 page 72 of 904 ...
Страница 148: ...Rev 1 0 09 01 page 104 of 904 ...
Страница 284: ...Rev 1 0 09 01 page 240 of 904 ...
Страница 422: ...Rev 1 0 09 01 page 378 of 904 ...
Страница 634: ...Rev 1 0 09 01 page 590 of 904 ...
Страница 656: ...Rev 1 0 09 01 page 612 of 904 ...
Страница 668: ...Rev 1 0 09 01 page 624 of 904 ...
Страница 780: ...Rev 1 0 09 01 page 736 of 904 ...
Страница 796: ...Rev 1 0 09 01 page 752 of 904 ...
Страница 806: ...Rev 1 0 09 01 page 762 of 903 ...
Страница 808: ...Rev 1 0 09 01 page 764 of 904 ...
Страница 921: ...Rev 1 0 09 01 page 877 of 904 ø tBRQOD tBRQOD Figure 24 24 External Bus Request Output Timing ...
Страница 938: ...Rev 1 0 09 01 page 894 of 904 ...