Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 119

• 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 58. UART Address Compare Register (U0ADDR)
Table 59. UART Baud Rate High Byte Register (U0BRH)
Table 60. UART Baud Rate Low Byte Register (U0BRL)
PS022517-0508
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
UART Baud Rate High and Low Byte Registers
7
7
7
COMP_ADDR—Compare Address
This 8-bit value is compared to the incoming address bytes.
The UART Baud Rate High and Low Byte registers
create a 16-bit baud rate divisor value (BRG[15:0]) that sets the data transmission rate
(baud rate) of the UART.
The UART data rate is calculated using the following equation:
UART Baud Rate (bits/s)
6
6
6
5
5
5
=
---------------------------------------------------------------------------------------------- -
16 xUART Baud Rate Divisor Value
System Clock Frequency (Hz)
COMP_ADDR
4
4
4
F45H
F46H
F47H
BRH
R/W
R/W
BRL
R/W
0
1
1
3
3
3
Universal Asynchronous Receiver/Transmitter
(Table 59
Z8 Encore! XP
2
2
2
and
Product Specification
Table
1
1
1
®
60) combine to
F0822 Series
0
0
0
106