HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 458

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

16.3.7
DDCSWR controls the IIC_0 automatic format switching function and IIC internal latch
clearance.
Rev. 2.0, 08/02, page 418 of 788
Bit Bit Name Initial Value R/W
7
6
5
4
SWE
SW
IE
IF
DDC Switch Register (DDCSWR)
0
0
0
0
R/W
R/W
R/W
R/(W)*
1
Description
DDC Mode Switch Enable
0: Disables automatic switching of IIC channel 0 from
formatless mode to I
1: Enables automatic switching of IIC channel 0 from
formatless mode to I
DDC Mode Switch
0: Uses IIC channel 0 with the I
1: Uses IIC channel 0 in formatless mode
[Setting condition]
When 1 is written in SW after reading SW = 0
[Clearing conditions]
DDC Mode Switch Interrupt Enable Bit
0: Disables interrupts when automatic format switching is
executed
1: Enables interrupts when automatic format switching is
executed
DDC Mode Switch Interrupt Flag
Indicates an interrupt request to the CPU is generated
when automatic format switching is executed for IIC_0.
[Setting condition]
When a falling edge is detected on the SCL pin when SWE
= 1
[Clearing condition]
When 0 is written in IF after reading IF = 1
When 0 is written by software
When a falling edge is detected on the SCL pin when
SWE = 1
2
2
C bus format
C bus format
2
C bus format