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H'D0E5: DDC Switch Register DDCSWR: I
7
:
Bit
SWE
:
0
Initial value
:
R/W
R/W
DDC mode switch enable
0 Disables automatic switching from formatless transfer to I
format transfer for IIC channel 0.
1 Enables automatic switching from formatless transfer to I
format transfer for IIC channel 0.
Notes: 1. Only 0 can be written to clear the flag.
6
5
SW
IE
0
0
R/W
R/W
DDC mode switch interrupt enable bit
DDC mode switch
2
0 I
C bus format is selected for IIC channel 0.
[Clearing condition]
(1) When 0 is written by software
(2) When an SCL falling edge is detected when SWE = 1
1 Formatless transfer is selected for IIC channel 0.
[Setting condition]
When 1 is written after SW = 0 is read
2. Always read as 1.
2
C Bus Interface
4
3
IF
CLR3
0
1
1
2
R/(W)*
W*
DDC mode switch interrupt flag
0 Interrupt has not been requested
[Clearing condition]
When 0 is written after IF = 1 is read
1 Interrupt has been requested
[Setting condition]
When an SCL falling edge is detected when SWE = 1
0 Disables an interrupt at automatic format switching
1 Enables an interrupt at automatic format switching
(Initial value)
2
1
CLR2
CLR1
1
1
2
2
W*
W*
2
I
C clear control
(Initial value)
2
C bus
2
C bus
Rev. 1.0, 02/00, page 1031 of 1141
0
CLR0
1
2
W*
(Initial value)
(Initial value)
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