Datasheet

Section 16 I
2
C Bus Interface [H8S/2138 Group Option]
Rev. 4.00 Jun 06, 2006 page 486 of 1004
REJ09B0301-0400
IIC0 only, FS = 0 or FSX = 0
DATA A ADATA
11
n8
1m
1
A/A
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
S DATA DATA P
11
n8
1 m
FS = 1 and FSX = 1
transfer bit count
(n = 1 to 8)
transfer frame count
(m ≥ 1)
Figure 16.5 I
2
C Bus Data Format (Serial Format)
SDA
SCL
S
1-7
SLA
8
R/W
9
A
1-7
DATA
89 1-7 89
A DATA PA/A
Figure 16.6 I
2
C Bus Timing