Renesas R8C/20 User Manual

R8C/20 Group, R8C/21 Group 16. Clock Synchronous Serial Interface
Rev.2.00 Aug 27, 2008 Page 313 of 458
REJ09B0250-0200
Figure 16.22 Block Diagram of I
2
C Bus Interface
ICCR1 register
Data bus
ICCR2 register
ICMR register
ICDRT register
SAR register
ICSR register
Address comparison
circuit
Output
control
SCL
Interrupt request
(TXI, TEI, RXI, STPI, NAKI)
Transfer clock
generation
circuit
ICDRS register
ICDRR register
Bus state judgment
circuit
Arbitration judgment
circuit
ICIER register
Interrupt generation
circuit
Transmit / receive
control circuit
Noise
rejection
circuit
SDA
Output
control
f1
Noise
rejection
circuit

Renesas R8C/20 Specifications

General

Brand	Renesas
Model	R8C/20
Category	Control Unit
Language	English