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Z8FS021 Datasheet(PDF) 16 Page - Zilog, Inc.

No. de pieza Z8FS021
Descripción Electrónicos  Select from an assortment of lenses and pyroelectric sensors to best fit your application
PDF  68 Pages
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Fabricante Electrónico  ZILOG [Zilog, Inc.]
Página de inicio  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z8FS021 Datasheet(HTML) 16 Page - Zilog, Inc.

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PS028806-0315
Signal Descriptions
ZMOTION® Intrusion Detection
Product Specification
8
Signal Descriptions
Table 2 describes the Z8FS021 MCU signals. Signal availability is package dependent.
See the Pin Configuration section on page 5 for signal availability multiplexing.
Table 2. Z8FS021 MCU Signal Descriptions
Signal
Mnemonic
I/O
Description
General-Purpose I/O Ports A–D
PA[7:0]
I/O
Port A. These pins are used for general-purpose I/O.
PB[5:0]
I/O
Port B. These pins are used for general-purpose I/O.
PC[7:0]
I/O
Port C. These pins are used for general-purpose I/O.
PD[0]
O
Port D. This pin is used for general-purpose output only.
UART Controllers
TXD0
O
Transmit Data. This signal is the transmit output from the UART and IrDA.
RXD0
I
Receive Data. This signal is the receive input for the UART and IrDA.
CTS0
I
Clear To Send. This signal is the flow control input for the UART.
DE
O
Driver Enable. This signal allows automatic control of external RS-485
drivers. It is approximately the inverse of the Transmit Empty (TXE) bit in
the UART Status 0 Register. The DE signal can be used to ensure that the
external RS-485 driver is enabled when data is transmitted by the UART.
Timers
T0OUT/T1OUT
O
Timer Output 0–1. These signals are outputs from the timers.
T0OUT/T1OUT
O
Timer Complement Output 0–1. These signals are output from the timers in
PWM Dual Output mode.
T0IN/T1IN
I
Timer Input 0–1. These signals are used as the capture, gating and counter
inputs.
Comparator
CINP/CINN
I
Comparator Inputs. These signals are the positive and negative inputs to
the comparator.
COUT
O
Comparator Output.
Analog
ANA[7:0]
I
Analog Port. These signals are used as inputs to the analog-to-digital
converter (ADC).
V
REF
I/O
Analog-to-digital converter reference voltage input, or buffered output for
internal reference.



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