h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 626

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 15 I
15.3
15.3.1
The I
The I
15-3 (a) and (b). The first frame following a start condition always consists of 8 bits.
The serial format is a non-addressing format with no acknowledge bit. Although start and stop
conditions must be issued, this format can be used as a synchronous serial format. This is shown in
figure 15-4.
Figure 15-5 shows the I
The symbols used in figures 15-3 to 15-5 are explained in table 15-4.
Rev. 6.00 Feb 22, 2005 page 566 of 1484
REJ09B0103-0600
(a) I
(b) I
S
S
1
1
2
2
2
2
C bus format (FS = 0 or FSX = 0)
C bus format (start condition retransmission, FS = 0 or FSX = 0)
C bus interface has serial and I
C bus formats are addressing formats with an acknowledge bit. These are shown in figures
Operation
I
SLA
SLA
2
7
7
C Bus Data Format
2
C Bus Interface [Option] (Only for the H8S/2638, H8S/2639, and H8S/2630)
1
1
R/W
R/W
1
1
Figure 15-3 I
2
C bus timing.
A
A
1
1
DATA
DATA
n1
n
2
m1
C Bus Data Formats (I
2
C bus formats.
A
1
A/A
m
1
S
1
n1 and n2: transfer bit count (n1 and n2 = 1 to 8)
m1 and m2: transfer frame count (m1 and m2 ≥ 1)
SLA
A/A
1
7
2
C Bus Formats)
P
1
1
R/W
1
m: transfer frame count
(m ≥ 1)
n: transfer bit count
(n = 1 to 8)
A
1
DATA
n2
m2
A/A
1
1
P