HD64F2149 Datasheet, PDF (539/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

(a) I²C bus format (FS = 0 or FSX = 0)
S
SLA
R/W A
DATA
1
7
11
n
1
A
1
m
A/A P
11
transfer bit count
(n = 1 to 8)
transfer frame count
(m ≥ 1)
(b) I²C bus format (start condition retransmission, FS = 0 or FSX = 0)
S
SLA
R/W A
DATA
1
7
11
n1
A/A S
11
SLA
R/W A
DATA
7
11
n2
1
m1
1
m2
transfer bit count (n1 and n2 = 1 to 8)
transfer frame count (m1 and m2 ≥ 1)
Figure 16.3 I²C Bus Data Formats (I²C Bus Formats)
A/A P
11
IIC0 only, FS = 0 or FSX = 0
DATA
A
8
1
1
DATA
n
A
1
m
A/A
1
transfer bit count (n = 1 to 8)
transfer frame count (m ≥ 1)
Note: This mode applies to the DDC (Display Data Channel) which is a PC monitoring
system standard.
Figure 16.4 Formatless
FS = 1 and FSX = 1
S
DATA
1
8
1
DATA
n
m
P
1
transfer bit count
(n = 1 to 8)
transfer frame count
(m ≥ 1)
Figure 16.5 I²C Bus Data Format (Serial Format)
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