Section 18 I
2
C Bus Interface (IIC)
Rev. 1.00 Apr. 28, 2008 Page 578 of 994
REJ09B0452-0100
SCL
SDA
IRIC
User processing
Clear IRIC
2
1
3
A
8
1
2
3
9
8
Clear IRIC
When WAIT = 1, and FS = 0 or FSX = 0 (I
2
C bus format, wait inserted)
SCL
SDA
IRIC
User processing
Clear IRIC
Write to ICDR (transmit)
or read from ICDR (receive)
1
A
8
1
9
8
Clear IRIC
(a) Data transfer ends with ICDRE = 0 at transmission, or ICDRF = 0 at reception.
(b) Data transfer ends with ICDRE = 1 at transmission, or ICDRF = 1 at reception.
Figure 18.19 IRIC Setting Timing and SCL Control (2)
SCL
SDA
IRIC
User processing
Clear IRIC
1
8
7
4
1
2
3
8
7
When FS = 1 and FSX = 1 (clocked synchronous serial format)
(a) Data transfer ends with ICDRE = 0 at transmission, or ICDRF = 0 at reception.
SCL
SDA
IRIC
User processing
Clear IRIC
Clear IRIC
Write to ICDR (transmit)
or read from ICDR (receive)
8
7
2
1
4
3
1
8
7
(b) Data transfer ends with ICDRE = 1 at transmission, or ICDRF = 1 at reception.
Figure 18.20 IRIC Setting Timing and SCL Control (3)
Содержание H8S/2100 Series
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Страница 494: ...Section 15 Serial Communication Interface SCI Rev 1 00 Apr 28 2008 Page 468 of 994 REJ09B0452 0100...
Страница 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
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