Z8F0812SJ020EC Zilog, Z8F0812SJ020EC Datasheet - Page 123
Z8F0812SJ020EC
Manufacturer Part Number
Z8F0812SJ020EC
Description
IC ENCORE MCU FLASH 8K 28SOIC
Manufacturer
Zilog
Series
Encore!® XP®r
Datasheet
1.Z8F08200100KIT.pdf
(264 pages)
Specifications of Z8F0812SJ020EC
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
269-3228
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PS022517-0508
Baud Rate
IR_TXD
UART’s
Clock
TXD
Transmitting IrDA Data
7-clock
delay
The baud rate is set by the UART’s Baud Rate Generator and supports IrDA standard baud
rates from 9600 baud to 115.2 Kbaud. Higher baud rates are possible, but do not meet
IrDA specifications. The UART must be enabled to use the Infrared Endec. The Infrared
Endec data rate is calculated using the following equation.
The data to be transmitted using the infrared transceiver is first sent to the UART. The
UART’s transmit signal (TXD) and baud rate clock are used by the IrDA to generate the
modulation signal (IR_TXD) that drives the infrared transceiver. Each UART/Infrared
data bit is 16-clocks wide. If the data to be transmitted is 1, the IR_TXD signal remains
low for the full 16-clock period. If the data to be transmitted is 0, a 3-clock high pulse is
output following a 7-clock low period. After the 3-clock high pulse, a 6-clock low pulse is
output to complete the full 16-clock data period.
sion. When the Infrared Endec is enabled, the UART’s TXD signal is internal to the Z8
Encore! XP
pin.
Infrared Data Rate (bits/s)
Start Bit = 0
16-clock
period
3-clock
pulse
®
F0822 Series products while the IR_TXD signal is output through the TXD
Data Bit 0 = 1
Figure 18. Infrared Data Transmission
=
---------------------------------------------------------------------------------------------
16xUART Baud Rate Divisor Value
System Clock Frequency (Hz)
Data Bit 1 = 0
Figure 18
Data Bit 2 = 1
Z8 Encore! XP
displays IrDA data transmis-
Product Specification
Infrared Encoder/Decoder
Data Bit 3 = 1
®
F0822 Series
110
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