Hitachi H8/329 Series Hardware Manual page 312

MDCR—Mode Control Register
Bit 7
—
Initial value 1
Read/Write —
Note: * Determined by inputs at pins MD
ISCR—IRQ Sense Control Register
Bit 7
—
Initial value 1
Read/Write —
IER—IRQ Enable Register
Bit 7
—
Initial value 1
Read/Write —
6 5 4
— — —
1 1 0
— — —
and MD
1
6 5 4
— — —
1 1 1
— — —
6 5 4
— — —
1 1 1
— — —
IRQ to IRQ
0
0 IRQ
1 IRQ
303
H'FFC5 System Control
3 2
— —
0 1
— —
Mode Select Bits
Value at mode pins.
.
0
H'FFC6 System Control
3 2
— IRQ SC IRQ
2
1 0
— R/W
IRQ to IRQ
0
0 IRQ is level-sensed (active Low).
i
1 IRQ is edge-sensed (falling edge).
i
H'FFC7 System Control
3 2
— IRQ E
2
1 0
— R/W
Enable
2
is disabled.
i
is enabled.
i
1 0
MDS1 MDS0
* *
R R
1 0
SC IRQ SC
1 0
0 0
R/W R/W
Sense Control
2
1 0
IRQ E IRQ E
1 0
0 0
R/W R/W