Renesas H8S/2100 Series, Hardware Manual

Page: 125 / 1024

Section 5 Interrupt Controller
Rev. 1.00 Apr. 28, 2008 Page 99 of 994
REJ09B0452-0100
5.3.7 Keyboard Matrix Interrupt Mask Registers (KMIMRA KMIMR)
Wake-Up Event Interrupt Mask Registers (WUEMR)
The KMIMR and WUEMR registers enable or disable key-sensing interrupt inputs (
KIN15
to
KIN0
) and wake-up event interrupt inputs (
WUE15
to
WUE8
).
•
KMIMRA
Bit Bit Name Initial Value R/W Description
7
6
5
4
3
2
1
0
KMIMR15
KMIMR14
KMIMR13
KMIMR12
KMIMR11
KMIMR10
KMIMR9
KMIMR8
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Keyboard Matrix Interrupt Mask
These bits enable or disable a key-sensing input
interrupt request (KIN15 to KIN8).
0: Enables a key-sensing input interrupt request
1: Disables a key-sensing input interrupt request
•
KMIMR
Bit Bit Name Initial Value R/W Description
7
6
5
4
3
2
1
0
KMIMR7
KMIMR6
KMIMR5
KMIMR4
KMIMR3
KMIMR2
KMIMR1
KMIMR0
1
0/1 *
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Keyboard Matrix Interrupt Mask
These bits enable or disable a key-sensing input
interrupt request (KIN7 to KIN0).
0: Enables a key-sensing input interrupt request
1: Disables a key-sensing input interrupt request
When the EIVS bit in SYSCR3 is cleared to 0, the
KMIMR6 bit also simultaneously controls enabling
and disabling of the IRQ6 interrupt request. In this
case, the initial value of the KMIMR6 bit is 0. When
the EIVS bit is set to 1, the initial value of the
KMIMR6 bit becomes 1.
Note: * The initial value is 0 when EIVS = 0 and the initial value is 1 when EIVS = 1.