Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 64

• 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 15. Port A–C Control Registers (PxCTL)
Table 16. Port A–C Data Direction Sub-Registers
PS022517-0508
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
Port A–C Control Registers
7
7
DD7
If 01H in Port A–C Address Register, accessible through the Port A–C Control Register
The Port A–C Control Registers set the GPIO port operation. The value in the correspond-
ing Port A–C Address Register determines the control sub-registers accessible using the
Port A–C Control Register
PCTL[7:0]—Port Control
The Port Control Register provides access to all sub-registers that configure the GPIO Port
operation.
Port A–C Data Direction Sub-Registers
The Port A–C Data Direction sub-register is accessed through the Port A–C Control
register by writing 01H to the Port A–C Address Register
DD[7:0]—Data Direction
These bits control the direction of the associated port pin. Port Alternate Function
operation overrides the Data Direction register setting.
0 = Output. Data in the Port A–C Output Data Register is driven onto the port pin.
1 = Input. The port pin is sampled and the value written into the Port A–C Input
Port A–C Alternate Function Sub-Registers
The Port A–C Alternate Function sub-register
Port A–C Control Register by writing
Port A–C Alternate Function sub-registers select the alternate functions for the selected
Data Register. The output driver is tri-stated.
6
6
DD6
5
5
DD5
(Table
4
4
FD1H, FD5H, FD9H
DD4
15).
02H
PCTL
R/W
R/W
00H
1
3
3
to the Port A–C Address Register. The
DD3
(Table
17) is accessed through the
2
2
Z8 Encore! XP
DD2
(Table
General-Purpose Input/Output
Product Specification
16).
1
1
DD1
®
F0822 Series
0
0
DD0
51