HD64F3664BPV Datasheet, PDF (289/446 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 15 I²C Bus Interface (IIC)
Slave receive mode Slave transmit mode
SCL
(master output) 8
9
SCL
(slave output)
1
2
3
4
5
6
7
8
9
1
2
SDA
(slave output)
A
SDA
[2]
(master output) _R/W
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Data 1
Bit 7 Bit 6
Data 2
A
TDRE
IRIC
ICDRT
Interrupt
request
generation
Interrupt
request
generation
Data 1
Data 2
[3]
Interrupt
request
generation
ICDRS
Data 1
Data 2
User processing [3] IRIC [3] ICDR
clearance write
[3] ICDR
write
[5] IRIC
clearance
[5] ICDR
write
Figure 15.9 Example of Slave Transmit Mode Operation Timing
(MLS = 0)
FS = 1 and FSX = 1
S
DATA
1
8
1
DATA
n
m
P
1
n: transfer bit count
(n = 1 to 8)
m: transfer frame count
(m ≥ 1)
Figure 15.10 I²C Bus Data Format (Serial Format)
15.4.6 Clock Synchronous Serial Format
Serial format is a non-addressing format that has no acknowledge bit. Figure 15.10 shows this
format.
Rev. 6.00 Mar. 24, 2006 Page 259 of 412
REJ09B0142-0600