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Section 16 I
2
C Bus Interface 2 (IIC2)
Rev. 4.00 Sep. 14, 2005 Page 488 of 982
REJ09B0023-0400
16.4 Operation
The I
2
C bus interface can communicate either in I
2
C bus mode or clocked synchronous serial mode
by setting FS in SAR.
16.4.1 I
2
C Bus Format
Figure 16.3 shows the I
2
C bus formats. Figure 16.4 shows the I
2
C bus timing. The first frame
following a start condition always consists of eight bits.
S
SLA
R/
W
A
DATA
A
A/
A
P
1
1
1
1
n
7
1
m
(a) I
2
C bus format (FS = 0)
(b) I
2
C bus format (Start condition retransmission, FS = 0)
n: Transfer bit count (n = 1 to 8)
m: Transfer frame count (m
≥
1)
S
SLA
R/
W
A
DATA
1
1
1
n1
7
1
m1
S
SLA
R/
W
A
DATA
A/
A
P
1
1
1
n2
7
1
m2
1
1
1
A/
A
n1 and n2: Transfer bit count (n1 and n2 = 1 to 8)
m1 and m2: Transfer frame count (m1 and m2
≥
1)
1
1
Figure 16.3 I
2
C Bus Formats
SDA
SCL
S
1-7
SLA
8
R/
W
9
A
1-7
DATA
8
9
1-7
8
9
A
DATA
P
A
Figure 16.4 I
2
C Bus Timing
Содержание HD6417641
Страница 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Страница 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Страница 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Страница 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Страница 1036: ...SH7641 Hardware Manual...