Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 1114 of 1823
Jul 31, 2019
RX23W Group 35. I
2
C-bus Interface (RIICa)
Figure 35.1 RIIC Block Diagram
Low power consumption
function
Module stop state can be set.
RIIC operating modes
 Four
Master transmit mode, master receive mode, slave transmit mode, and slave receive mode
Event link function
(output)
 Four sources (RIIC0):
Error in transfer or occurrence of events
Detection of arbitration, NACK, timeout, a start condition including a restart condition, or a stop condition
 Receive data full (including matching with a slave address)
 Transmit data empty (including matching with a slave address)
 Transmit end
Table 35.1 RIIC Specifications (2/2)
Item Description
ICCR1
Output
control
Noise
canceller
Bus state decision
circuit
Arbitration decision
circuit
Output
control
Noise
canceller
ICDRS
ICDRT
ICDRR
Address comparator
ICCR2
ICMR1
ICMR2
ICMR3
ICFER
ICSR1
ICSR2
ICSER
ICIER
ICBRH
ICBRL
Timeout circuit
Interrupt generator
Transmission/
reception control
circuit
Transfer clock
generator
ACK output circuit
SCL0
SDA0
NACK decision/ACK
reception circuit
Internal data bus
BC[2:0]
CKS[2:0]
CLO
SDAI
BBSY, MST, TRS
SDA output delay control
ST, RS, SP
IICRST
SDDL[2:0]
PCLK
ACKBR
WAIT, RDRFS
NF[1:0]
ACKBT
NFE
SARL0
SARL1
SARL2
SARU0
SARU1
SARU2
NACKF
Interrupt request
(TXI, TEI, RXI, EEI)
NF[1:0]
NFE
MALE, NALE, SALE
TMOE TMOS, TMOH, TMOL
SCLE
NACKE
SCLI
SCL0, SDA0
PS
DLCS
TMOF
PS
IIC (PCLK/1 to PCLK/128)
IIC, IIC/2
Event output

Renesas RX Series Specifications

General

Brand	Renesas
Model	RX Series
Category	Microcontrollers
Language	English