Z8F0113HJ005EG Datasheet, PDF (75/245 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F0823 Series
Product Specification
60
Bit
[4]
U0RXI
[3]
U0TXI
[2:1]
[0]
ADCI
Description (Continued)
UART 0 Receiver Interrupt Request
0 = No interrupt request is pending for the UART 0 receiver.
1 = An interrupt request from the UART 0 receiver is awaiting service.
UART 0 Transmitter Interrupt Request
0 = No interrupt request is pending for the UART 0 transmitter.
1 = An interrupt request from the UART 0 transmitter is awaiting service.
Reserved
These bits are reserved and must be programmed to 00.
ADC Interrupt Request
0 = No interrupt request is pending for the ADC.
1 = An interrupt request from the ADC is awaiting service.
Interrupt Request 1 Register
The Interrupt Request 1 (IRQ1) register (Table 37) stores interrupt requests for both vec-
tored and polled interrupts. When a request is presented to the interrupt controller, the cor-
responding bit in the IRQ1 Register becomes 1. If interrupts are globally enabled
(vectored interrupts), the interrupt controller passes an interrupt request to the eZ8 CPU. If
interrupts are globally disabled (polled interrupts), the eZ8 CPU reads the Interrupt
Request 1 Register to determine if any interrupt requests are pending.
Table 37. Interrupt Request 1 Register (IRQ1)
Bit
Field
RESET
R/W
Address
7
PA7VI
0
R/W
6
PA6CI
0
R/W
5
PA5I
0
R/W
4
PA4I
3
PA3I
0
0
R/W
R/W
FC3H
2
PA2I
0
R/W
1
PA1I
0
R/W
0
PA0I
0
R/W
Bit
Description
[7]
PA7VI
Port A7 Interrupt Request
0 = No interrupt request is pending for GPIO Port A.
1 = An interrupt request from GPIO Port A.
[6]
PA6CI
Port A6 or Comparator Interrupt Request
0 = No interrupt request is pending for GPIO Port A or Comparator.
1 = An interrupt request from GPIO Port A or Comparator.
[5:0]
PAxI
Port A Pin x Interrupt Request
0 = No interrupt request is pending for GPIO Port A pin x.
1 = An interrupt request from GPIO Port A pin x is awaiting service.
Note: x indicates the specific GPIO Port pin number (0–5).
PS024315-1011
PRELIMINARY
Interrupt Control Register Definitions