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13.3.15 KEYEN (0x0B00 031C)
Bit
15
Name
KEYSEL
R/W
R/W
RTCRST
0
Note
Other resets
Bit
7
Name
CFHIBEN
R/W
R/W
RTCRST
0
Other resets
Note
Bit
Name
15
KEYSEL
14 to 8
Reserved
7
CFHIBEN
6 to 0
Reserved
Note Holds the value before reset
The GIU only provides an internal output signal (keysel) when the KEYSEL bit is set to 1. An external logic is
responsible for multiplexing the pin inputs and pin outputs, and I/O buffer enable control from the ECU and the KIU.
When the CompactFlash interface is enabled during Hibernate mode, a high-to-low transition on the
CompactFlash CF_BUSY# pin will cause the V
CHAPTER 13 GENERAL PURPOSE I/O UNIT (GIU)
14
13
Reserved
Reserved
Reserved
R
R
0
0
0
0
6
5
Reserved
Reserved
Reserved
R
R
0
0
0
0
Keyboard scan pin enable. This bit causes the pins assigned to support the
CompactFlash interface to be redefined to support the keyboard scan interface.
0 : CompactFlash interface enabled
1 : Keyboard scan interface enabled
0 is returned when read
CompactFlash interface enable during Hibernate mode
0 : Disable
1 : Enable
0 is returned when read
4181 to wake up and return to Fullspeed mode.
R
User's Manual U14272EJ3V0UM
12
11
10
Reserved
Reserved
R
R
R
0
0
0
0
0
0
4
3
2
Reserved
Reserved
R
R
R
0
0
0
0
0
0
Function
9
8
Reserved
Reserved
R
R
0
0
0
0
1
0
Reserved
Reserved
R
R
0
0
0
0
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