EZ80F92AZ020EC00TR Zilog, EZ80F92AZ020EC00TR Datasheet - Page 138
EZ80F92AZ020EC00TR
Manufacturer Part Number
EZ80F92AZ020EC00TR
Description
IC ACCLAIM MCU 128KB 100LQFP
Manufacturer
Zilog
Series
eZ80® Acclaim!®r
Specifications of EZ80F92AZ020EC00TR
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
EZ80F92AZ020EC00T
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PS015313-0508
SPI Signals
The four basic SPI signals are:
1. MISO (Master In, Slave Out)
2. MOSI (Master Out, Slave In)
3. SCK (SPI Serial Clock)
4. SS (Slave Select)
These SPI signals are discussed in the following paragraphs. Each signal is described in
both MASTER and SLAVE modes.
Master In, Slave Out
The Master In, Slave Out (MISO) pin is configured as an input in a master device and as
an output in a slave device. It is one of the two lines that transfer serial data, with the msb
sent first. The MISO pin of a slave device is placed in a high-impedance state if the slave
is not selected. When the SPI is not enabled, this signal is in a high-impedance state.
Master Out, Slave In
The Master Out, Slave In (MOSI) pin is configured as an output in a master device and as
an input in a slave device. It is one of the two lines that transfer serial data, with the msb
sent first. When the SPI is not enabled, this signal is in a high-impedance state.
Slave Select
The active Low Slave Select (SS) input signal is used to select the SPI as a slave device. It
must be Low prior to all data communication and must stay Low for the duration of the
data transfer.
The SS input signal must be High for the SPI to operate as a master device. If the SS signal
goes Low, a Mode Fault error flag (MODF) is set in the SPI_SR register. See SPI Status
Register (SPI_SR) on page 137 for more information.
ENABLE
DATAIN
CLKIN
SS
MOSI
SCK
Bit 0
8-Bit Shift Register
Figure 30.SPI Slave Device
SLAVE
Bit 7
MISO
DATAOUT
Product Specification
Serial Peripheral Interface
eZ80F92/eZ80F93
131
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