Z8F042AHJ020SC00TR Zilog, Z8F042AHJ020SC00TR Datasheet - Page 124

• Manufacturer Part Number: Z8F042AHJ020SC00TR
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SC00TR

• 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: Contains lead / RoHS non-compliant
• Other names: Z8F042AHJ020SC00T

Table 65. UART Transmit Data Register (U0TXD)
Table 66. UART Receive Data Register (U0RXD)
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
X = Undefined.
PS022825-0908
UART Transmit Data Register
UART Receive Data Register
W
R
7
X
7
X
MPRX—Multiprocessor Receive
Returns the value of the most recent multiprocessor bit received. Reading from the UART
Receive Data register resets this bit to 0.
Data bytes written to the UART Transmit Data (UxTXD) register
out on the
address with the read-only UART Receive Data register.
TXD—Transmit Data
UART transmitter data byte to be shifted out through the TXDx pin.
Data bytes received through the RXDx pin are stored in the UART Receive Data
(UxRXD) register
ter File address with the Write-only UART Transmit Data register.
RXD—Receive Data
UART receiver data byte from the RXDx pin
TXDx
W
X
X
R
6
6
pin. The Write-only UART Transmit Data register shares a Register File
(Table
W
R
X
X
5
5
66). The read-only UART Receive Data register shares a Regis-
W
X
X
R
4
4
F40H
F40H
RXD
TXD
W
R
X
X
3
3
Universal Asynchronous Receiver/Transmitter
Z8 Encore! XP
W
X
X
R
2
2
Product Specification
(Table
W
R
X
X
1
1
®
65) are shifted
F082A Series
W
X
X
R
0
0
113