Z8F1602 ZILOG [Zilog, Inc.], Z8F1602 Datasheet - Page 66

• Manufacturer Part Number: Z8F1602
• Description: Z8 Encore Microcontrollers with Flash Memory and 10-Bit A/D Converter
• Manufacturer: ZILOG [Zilog, Inc.]

Table 23. Interrupt Request 0 Register (IRQ0)
Interrupt Control Register Definitions
PS017610-0404
RESET
FIELD
ADDR
BITS
R/W
Interrupt Request 0 Register
R/W
T2I
7
0
For all interrupts other than the Watch-Dog Timer interrupt, the interrupt control registers
enable individual interrupts, set interrupt priorities, and indicate interrupt requests.
The Interrupt Request 0 (IRQ0) register (Table 23) stores the interrupt requests for both
vectored and polled interrupts. When a request is presented to the interrupt controller, the
corresponding bit in the IRQ0 register becomes 1. If interrupts are globally enabled (vec-
tored interrupts), the interrupt controller passes an interrupt request to the eZ8 CPU. If
interrupts are globally disabled (polled interrupts), the eZ8 CPU can read the Interrupt
Request 0 register to determine if any interrupt requests are pending
T2I—Timer 2 Interrupt Request
0 = No interrupt request is pending for Timer 2.
1 = An interrupt request from Timer 2 is awaiting service.
T1I—Timer 1 Interrupt Request
0 = No interrupt request is pending for Timer 1.
1 = An interrupt request from Timer 1 is awaiting service.
T0I—Timer 0 Interrupt Request
0 = No interrupt request is pending for Timer 0.
1 = An interrupt request from Timer 0 is awaiting service.
U0RXI—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.
U0TXI—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.
R/W
T1I
6
0
R/W
T0I
5
0
U0RXI
R/W
4
0
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
FC0H
U0TXI
R/W
3
0
I2CI
R/W
2
0
R/W
SPII
Interrupt Controller
1
0
Z8 Encore!
ADCI
R/W
0
0
®
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