Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 80

• Manufacturer Part Number: Z8F042AHH020EG
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4156; Z8F042AHH020EG

Table 37. Interrupt Edge Select Register (IRQES)
Table 38. Interrupt Control Register (IRQCTL)
PS022517-0508
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
Interrupt Edge Select Register
Interrupt Control Register
7
7
IRQE
IES7
R/W
The Interrupt Edge Select (IRQES) register
generated for the rising edge or falling edge on the selected GPIO Port input pin. The
minimum pulse width must be greater than 1 system clock to guarantee capture of the edge
triggered interrupt. Edge detection for pulses less than 1 system clock are not guaranteed.
IESx—Interrupt Edge Select x
0 = An interrupt request is generated on the falling edge of the PAx input.
1 = An interrupt request is generated on the rising edge of the PAx input.
Where x indicates the specific GPIO Port pin number (0 through 7).
The Interrupt Control (IRQCTL) register
interrupts.
IRQE—Interrupt Request Enable
This bit is set to 1 by execution of an EI (Enable Interrupts) or IRET (Interrupt Return)
instruction, or by a direct register write of a 1 to this bit. It is reset to 0 by executing a
DI
register write of a 0 to this bit.
0 = Interrupts are disabled.
1 = Interrupts are enabled.
Reserved—Must be 0
instruction, eZ8 CPU acknowledgement of an interrupt request, Reset or by a direct
6
6
IES6
5
5
IES5
4
4
IES4
FCDH
FCFH
R/W
0
(Table
0
3
3
Reserved
(Table
IES3
R
38) contains the master enable bit for all
37) determines whether an interrupt is
2
2
Z8 Encore! XP
IES2
Product Specification
1
1
IES1
®
Interrupt Controller
F0822 Series
0
0
IES0
67