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R8C/20 Datasheet(PDF) 350 Page - Renesas Technology Corp

Part # R8C/20
Description  MCU R8C FAMILY / R8C/2x SERIES
PDF  501 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R8C/20 Datasheet(HTML) 350 Page - Renesas Technology Corp

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R8C/20 Group, R8C/21 Group
16. Clock Synchronous Serial Interface
Rev.2.00 Aug 27, 2008
Page 334 of 458
REJ09B0250-0200
Figure 16.39
Operating Timing in Slave Receive Mode (I2C Bus Interface Mode) (1)
Figure 16.40
Operating Timing in Slave Receive Mode (I2C Bus Interface Mode) (2)
SDA
(master output)
SCL
(master output)
1
8
96
7
45
3
b7
b6
b5
b4
b3
b2
b1
b0
b7
12
SDA
(slave output)
ICDRR register
ICDRS register
Data 1
Process
by program
A
(2) Dummy-read of ICDRR register
Data 1
9
RDRF bit in
ICSR register
1
0
A
(2) Read ICDRR register
SCL
(slave output)
Data 2
SDA
(master output)
SCL
(master output)
8
96
7
45
3
b7
b6
b5
b4
b3
b2
b1
b0
12
SDA
(slave output)
ICDRR register
ICDRS register
Data 1
Process
by program
A
(3) Read ICDRR register
Data 1
9
RDRF bit in
ICSR register
1
0
A
(4) Read ICDRR register
SCL
(slave output)
Data 2
(3) Set ACKBT bit to 1



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