p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 441

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

(master output)
(master output)
(slave output)
User processing
ICDRR
ICDRF
SCL
SDA
SDA
IRTR
IRIC
(master output)
(master output)
(slave output)
User processing
Master transmit mode
ICDRF
ICDRR
SCL
SDA
SDA
IRTR
IRIC
Figure 16.11 Example of Operation Timing in Master Receive Mode
Figure 16.12 Example of Stop Condition Issuance Operation Timing
Bit 1
Data 1
Data 2
7
[4] IRIC clear
Bit 0
A
9
in Master Receive Mode (MLS = WAIT = 0, HNDS = 1)
8
[1] TRS=0 clear
[6] Set ACKB = 1
A
9
[3]
SCL is fixed low until ICDR is read
SCL is fixed low until ICDR is read
Master receive mode
[1] IRIC clear
Bit 7
1
[7] ICDR read
(MLS = WAIT = 0, HNDS = 1)
(Data 2)
Bit 7
Bit 6
1
2
Bit 6
Bit 5
2
3
Data 1
[2] ICDR read
Undefined value
Bit 5
(Dummy read)
Bit 4
3
Data 2
Data 3
4
Bit 4
Bit 3
4
5
Bit 3
Bit 2
5
6
Bit 2
Bit 1
6
7
[4] IRIC clear
Rev. 1.00 Sep. 21, 2006 Page 403 of 658
Bit 1
Bit 0
SCL is fixed low until
stop condition is issued
7
[9] IRIC clear
8
Bit 0
[3]
A
8
Section 16 I
9
SCL is fixed low until ICDR is read
[11] Set BBSY=0 and
(Stop condition instruction issuance)
A
[8]
9
SCP=0
[5] ICDR read
(Data 1)
Data 1
2
Stop condition generation
C Bus Interface (IIC)
Bit 7
[10] ICDR read
REJ09B0310-0100
1
Data 2
(Data 3)
Bit 6
2
Data 3