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©2018 Integrated Device Technology, Inc
September 12, 2018
8A3xxxx Family Programming Guide
Module: SERIAL
Configure the serial communication ports.
SERIAL.I2CM
I2C Master configuration.
Table 329: SERIAL Register Index
Offset
(Hex)
Register Module Base Address: CAE0h
Individual Register Name
Register Description
000h
I2C Master configuration.
001h
RESERVED
This register must not be modified from the read value
002h
Slave serial interface 0 (main serial port) configuration.
003h
SPI configuration for serial interface 0 (main serial port).
004h
I2C configuration for serial interface 0 (main serial port).
005h
Slave serial interface 1 (auxiliary serial port) configuration.
006h
SPI configuration for serial interface 1 (auxiliary serial port).
007h
I2C configuration for serial interface 1 (auxiliary serial port).
008h
Trigger serial configuration changes.
Table 330: SERIAL.I2CM Bit Field Locations and Descriptions
Offset
Address
(Hex)
SERIAL.I2CM Bit Field Locations
D7
D6
D5
D4
D3
D2
D1
D0
000h
RESERVED[7:2]
I2CM_PORT_SEL[1:0]
SERIAL.I2CM Bit Field Descriptions
Bit Field Name
Field Type Default Value
Description
RESERVED
N/A
-
This field must not be modified from the read value
I2CM_PORT_SEL[1:0]
R/W
0
I2C Master port pin selection.
Configure the pins the I2C master block should connect to.
0 = I2C master
1 = serial interface 0
2 = serial interface 1