Samsung KS57C2308 Manual page 56

MEMORY MAP
IMOD0
— External Interrupt 0 (INT0) Mode Register
Bit
Identifier
Value
RESET
Read/Write
Bit Addressing
.3
.2
.1–.0
4-14
3 2
.3 "0"
0 0
W W
4 4
Interrupt Sampling Clock Selection Bit
0 Select CPU clock as a sampling clock
1 Select sampling clock frequency of the selected system clock (fxx/64)
Bit 2
0 Always logic zero
External Interrupt Mode Control Bits
0 0 Interrupt requests are triggered by a rising signal edge
0 1 Interrupt requests are triggered by a falling signal edge
1 0 Interrupt requests are triggered by both rising and falling signal edges
1 1 Interrupt request flag (IRQ0) cannot be set to logic one
1 0
.1 .0
0 0
W W
4 4
KS57C2308/P2308/C2316/P2316
FB4H