h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 545

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

[14] Write 0 to BBSY and SCP. This changes SDA from low to high when SCL is high, and
User processing
(master output)
(master output)
(master output)
(master output)
(slave output)
User processing
(slave output)
Master transmit mode
then clearing the WAIT bit to 0, the SDA line is fixed low and the stop condition cannot be
generated.)
generates the stop condition.
ICDR
IRTR
ICDR
SDA
IRTR
SCL
SDA
IRIC
SDA
SDA
SCL
IRIC
Data 2
Figure 16.8 (b) Example of Master Receive Mode Operation Timing
Figure 16.8 (a) Example of Master Receive Mode Operation Timing
[1] TRS cleared to 0
A
9
Bit0
WAIT set to 1
ACKB cleared to 0
8
[9] IRIC clear
[8]
Data 1
A
Master receive mode
Bit7
[2] ICDR read
1
(MLS = ACKB = 0, WAIT = 1) (cont)
[6] ICDR read
[5]
(dummy read)
9
Bit6
(Data 2)
2
(MLS = ACKB = 0, WAIT = 1)
Bit7
1
Bit5
3
Bit6
2
[2] IRIC clear
Bit4
4
Data 1
[7] IRIC clear
Data 2
Bit5
3
Section 16 I
Bit3
5
Bit4
Data 3
4
Bit2
6
Bit3
5
Bit1
7
Bit2
Rev. 4.00 Jun 06, 2006 page 491 of 1004
2
6
C Bus Interface [H8S/2138 Group Option]
Bit0
8
Bit1
[3]
7
[4] IRIC clear
[9] IRIC clear
Bit0
8
A
[8]
[5]
9
[6] ICDR read
A
Bit7
(Data 1)
1
[6] ICDR read
(Data 3)
Bit6
[5]
9
REJ09B0301-0400
2
Data 2
Data 1
Bit7
Data 3
Bit5
1
[7] IRIC clear
3
Data 4
Bit6
Bit4
2
[7] IRIC clear
4
Bit3
5