Users Manual
Table Of Contents
- 34. IrDA Interface
- 35. I2C-bus Interface (RIICa)
- 35.1 Overview
- 35.2 Register Descriptions
- 35.2.1 I2C-bus Control Register 1 (ICCR1)
- 35.2.2 I2C-bus Control Register 2 (ICCR2)
- 35.2.3 I2C-bus Mode Register 1 (ICMR1)
- 35.2.4 I2C-bus Mode Register 2 (ICMR2)
- 35.2.5 I2C-bus Mode Register 3 (ICMR3)
- 35.2.6 I2C-bus Function Enable Register (ICFER)
- 35.2.7 I2C-bus Status Enable Register (ICSER)
- 35.2.8 I2C-bus Interrupt Enable Register (ICIER)
- 35.2.9 I2C-bus Status Register 1 (ICSR1)
- 35.2.10 I2C-bus Status Register 2 (ICSR2)
- 35.2.11 Slave Address Register Ly (SARLy) (y = 0 to 2)
- 35.2.12 Slave Address Register Uy (SARUy) (y = 0 to 2)
- 35.2.13 I2C-bus Bit Rate Low-Level Register (ICBRL)
- 35.2.14 I2C-bus Bit Rate High-Level Register (ICBRH)
- 35.2.15 I2C-bus Transmit Data Register (ICDRT)
- 35.2.16 I2C-bus Receive Data Register (ICDRR)
- 35.2.17 I2C-bus Shift Register (ICDRS)
- 35.3 Operation
- 35.4 SCL Synchronization Circuit
- 35.5 SDA Output Delay Function
- 35.6 Digital Noise Filters
- 35.7 Address Match Detection
- 35.8 Automatic Low-Hold Function for SCL
- 35.9 Arbitration-Lost Detection Functions
- 35.10 Start Condition/Restart Condition/Stop Condition Generating Function
- 35.11 Bus Hanging
- 35.12 SMBus Operation
- 35.13 Interrupt Sources
- 35.14 Initialization of Registers and Functions When a Reset is Applied or a Condition is Detected
- 35.15 Event Link Function (Output)
- 35.16 Usage Notes
- 36. CAN Module (RSCAN)
R01UH0823EJ0110 Rev.1.10 Page 1139 of 1852
Nov 30, 2020
RX23W Group 35. I
2
C-bus Interface (RIICa)
35.2.8 I
2
C-bus Interrupt Enable Register (ICIER)
TMOIE Bit (Timeout Interrupt Request Enable)
This bit is used to enable or disable timeout interrupt (TMOI) requests when the ICSR2.TMOF flag is set to 1. A TMOI
interrupt request is canceled by setting the TMOF flag or the TMOIE bit to 0.
ALIE Bit (Arbitration-Lost Interrupt Request Enable)
This bit is used to enable or disable arbitration-lost interrupt (ALI) requests when the ICSR2.AL flag is set to 1. An ALI
interrupt request is canceled by setting the AL flag or the ALIE bit to 0.
STIE Bit (Start Condition Detection Interrupt Request Enable)
This bit is used to enable or disable start condition detection interrupt (STI) requests when the ICSR2.START flag is set
to 1. An STI interrupt request is canceled by setting the START flag or the STIE bit to 0.
SPIE Bit (Stop Condition Detection Interrupt Request Enable)
This bit is used to enable or disable stop condition detection interrupt (SPI) requests when the ICSR2.STOP flag is set to
1. An SPI interrupt request is canceled by setting the STOP flag or the SPIE bit to 0.
NAKIE Bit (NACK Reception Interrupt Request Enable)
This bit is used to enable or disable NACK reception interrupt (NAKI) requests when the ICSR2.NACKF flag is set to 1.
An NAKI interrupt request is canceled by setting the NACKF flag or the NAKIE bit to 0.
RIE Bit (Receive Data Full Interrupt Request Enable)
This bit is used to enable or disable receive data full interrupt (RXI) requests when the ICSR2.RDRF flag is set to 1.
Address(es): RIIC0.ICIER 0008 8307h
b7 b6 b5 b4 b3 b2 b1 b0
TIE TEIE RIE NAKIE SPIE STIE ALIE TMOIE
Value after reset:
00000000
Bit Symbol Bit Name Description R/W
b0 TMOIE Timeout Interrupt Request Enable 0: Timeout interrupt (TMOI) request is disabled.
1: Timeout interrupt (TMOI) request is enabled.
R/W
b1 ALIE Arbitration-Lost Interrupt Request
Enable
0: Arbitration-lost interrupt (ALI) request is disabled.
1: Arbitration-lost interrupt (ALI) request is enabled.
R/W
b2 STIE Start Condition Detection Interrupt
Request Enable
0: Start condition detection interrupt (STI) request is disabled.
1: Start condition detection interrupt (STI) request is enabled.
R/W
b3 SPIE Stop Condition Detection Interrupt
Request Enable
0: Stop condition detection interrupt (SPI) request is disabled.
1: Stop condition detection interrupt (SPI) request is enabled.
R/W
b4 NAKIE NACK Reception Interrupt Request
Enable
0: NACK reception interrupt (NAKI) request is disabled.
1: NACK reception interrupt (NAKI) request is enabled.
R/W
b5 RIE Receive Data Full Interrupt Request
Enable
0: Receive data full interrupt (RXI) request is disabled.
1: Receive data full interrupt (RXI) request is enabled.
R/W
b6 TEIE Transmit End Interrupt Request
Enable
0: Transmit end interrupt (TEI) request is disabled.
1: Transmit end interrupt (TEI) request is enabled.
R/W
b7 TIE Transmit Data Empty Interrupt
Request Enable
0: Transmit data empty interrupt (TXI) request is disabled.
1: Transmit data empty interrupt (TXI) request is enabled.
R/W