Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 112
Z8F042AHH020EG
Manufacturer Part Number
Z8F042AHH020EG
Description
IC ENCORE XP MCU FLASH 4K 20SSOP
Manufacturer
Zilog
Series
Encore!® XP®r
Datasheet
1.Z8F08200100KIT.pdf
(264 pages)
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
Z8F042AHH020EG
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PS022517-0508
UART Baud Rate Generator
The UART Baud Rate Generator creates a lower frequency baud rate clock for data
transmission. The input to the BRG is the system clock. The UART Baud Rate High and
Low Byte Registers combine to 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 Data Rate (bits/s)
Figure 16. UART Receiver Interrupt Service Routine Flow
Read Data
=
---------------------------------------------------------------------------------------------
16xUART Baud Rate Divisor Value
No
System Clock Frequency (Hz)
clears RDA bit and
Read Data which
resets error bits
Discard Data
Read Status
Receiver
Receiver
Interrupt
Ready
Errors?
Yes
Universal Asynchronous Receiver/Transmitter
Z8 Encore! XP
Product Specification
®
F0822 Series
99
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