Z8F042AHJ020SG Zilog, Z8F042AHJ020SG Datasheet - Page 104

• Manufacturer Part Number: Z8F042AHJ020SG
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SG

• 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: 23
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4159; Z8F042AHJ020SG

PS022517-0508
1
0
Idle State
1
0
of Line
Transmitting Data using Polled Method
Idle State
of Line
Follow the steps below to transmit data using polled method of operation:
1. Write to the UART Baud Rate High Byte and Low Byte registers to set the required
2. Enable the UART pin functions by configuring the associated GPIO Port pins for
3. If MULTIPROCESSOR mode is required, write to the UART Control 1 Register to
4. Write to the UART Control 0 Register to:
Start
Start
baud rate.
alternate function operation.
enable multiprocessor (9-bit) mode functions.
–
–
–
–
Bit0
Set the Multiprocessor Mode Select (MPEN) to enable MULTIPROCESSOR
mode.
Set the transmit enable bit (TEN) to enable the UART for data transmission
If parity is required, and MULTIPROCESSOR mode is not enabled, set the parity
enable bit (
Set or clear the
using the CTS pin.
lsb
Figure 12. UART Asynchronous Data Format without Parity
Bit0
lsb
Figure 13. UART Asynchronous Data Format with Parity
Bit1
Bit1
PEN
Bit2
) and select either even or odd parity (
CTSE
Bit2
bit to enable or disable control from the remote receiver
Bit3
Data Field
Bit3
Data Field
Bit4
Bit4
Bit5
Bit5
Universal Asynchronous Receiver/Transmitter
Bit6
Bit6
Z8 Encore! XP
msb
Bit7
PSEL
msb
Bit7
Product Specification
Parity
).
1
®
STOP Bit(s)
F0822 Series
1
2
STOP Bit(s)
2
91