Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 118

• 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

PS022517-0508
UART Address Compare Register
MPBT—Multiprocessor Bit Transmit
This bit is applicable only when Multiprocessor (9-bit) mode is enabled.
0 = Send a 0 in the multiprocessor bit location of the data stream (9th bit).
1 = Send a 1 in the multiprocessor bit location of the data stream (9th bit).
DEPOL—Driver Enable Polarity
0 = DE signal is Active High.
1 = DE signal is Active Low.
BRGCTL—Baud Rate Control
This bit causes different UART behavior depending on whether the UART receiver is
enabled (REN = 1 in the UART Control 0 Register).
When the UART receiver is not enabled, this bit determines whether the BRG will issue
interrupts.
0 = Reads from the Baud Rate High and Low Byte registers return the BRG Reload Value
1 = The BRG generates a receive interrupt when it counts down to
When the UART receiver is enabled, this bit allows reads from the Baud Rate Registers to
return the BRG count value instead of the Reload Value.
0 = Reads from the Baud Rate High and Low Byte registers return the BRG Reload Value.
1 = Reads from the Baud Rate High and Low Byte registers return the current BRG
RDAIRQ—Receive Data Interrupt Enable
0 = Received data and receiver errors generates an interrupt request to the
1 = Received data does not generate an interrupt request to the Interrupt Controller.
IREN—Infrared Encoder/Decoder Enable
0 = Infrared Encoder/Decoder is disabled. UART operates normally operation.
1 = Infrared Encoder/Decoder is enabled. The UART transmits and receives data
The UART Address Compare register stores the multi-node network address of the UART.
When the MPMD[1] bit of UART Control Register 0 is set, all incoming address bytes
will be compared to the value stored in the Address Compare register. Receive
interrupts and RDA assertions will only occur in the event of a match.
Interrupt Controller.
zero. Reads from the Baud Rate High and Low Byte registers return the current
BRG count value.
count value. Unlike the Timers, there is no mechanism to latch the High Byte
Only receiver errors generate an interrupt request.
through the Infrared Encoder/Decoder.
when the Low Byte is read.
Universal Asynchronous Receiver/Transmitter
Z8 Encore! XP
Product Specification
®
F0822 Series
105