Z8F0830HH020SG Datasheet, PDF (84/257 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore!^® F0830 Series
Product Specification
66
Shared Interrupt Select Register
The shared interrupt select (IRQSS) register determines the source of the PADxS inter-
rupts. See Table 48. The shared interrupt select register selects between Port A and alter-
nate sources for the individual interrupts.
Because these shared interrupts are edge-triggered, it is possible to generate an interrupt
just by switching from one shared source to another. For this reason, an interrupt must be
disabled before switching between sources.
Table 48. Shared Interrupt Select Register (IRQSS)
Bit
7
6
5
4
3
2
1
0
Field
Reserved PA6CS
Reserved
RESET
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Address
FCEH
Bit
[7]
[6]
PA6CS
[5:0]
Description
Reserved
This bit is reserved and must be programmed to 0.
PA6/Comparator Selection
0 = PA6 is used for the interrupt caused by PA6CS interrupt request.
1 = The comparator is used for the interrupt caused by PA6CS interrupt request.
Reserved
These registers are reserved and must be programmed to 000000.
PS025113-1212
Interrupt Control Register Definitions