Hitachi SH7760 Solution Engine2, Overview

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6.5.7 Key Input Status Register (KEYSR)
Address: 0x0062 Initial value: 0x00
D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 PONSWF ARKEYF
KEY_OFFF
KEY_ONF 0
R R R R/W R/W R/W R/W R
(1) KEY_ONF
KEY_ON bit Setting
0
An application switch key has not been turned on. (Initial value)
1
An application switch key has been turned on. At this time, if the
KEY_ONI bit is set to “1,” a key ON interrupt occurs.
[Clear condition]
This bit is reset when “0” is written with the KEY_ONF bit set to “1.”
(2) KEY_OFFF
KEY_OFFF bit Setting
0
An application switch key is ON or OFF. (Initial value)
1
An application switch key has changed from ON to OFF.
(Initial value)
At this time, if the KEY_OFFI bit is set to “1,” a key OFF interrupt
occurs.
[Clear condition]
This bit is cleared when “0” is written with the KEY_OFFI bit set to
“1.”
(3) ARKEYF
ARKEYF bit Setting
0
The same application switch key is not ON for the time specified in the
key auto repeat time register. (Initial value)
1
The same application switch is ON for the time specified in the key auto
repeat time register. At this time, if the ARKEYI bit is set to “1”,”
repeat interrupt occurs.
[Clear condition]
This bit is cleared when “0” is written with the ARKEYF bit set to “1.”