EZ80F920120MOD Zilog, EZ80F920120MOD Datasheet - Page 144

• Manufacturer Part Number: EZ80F920120MOD
• Description: MODULE EZ80F92 512K 20MHZ
• Manufacturer: Zilog

Specifications of EZ80F920120MOD

• Module/board Type: Development Module
• Processor Series: EZ80F92x
• Core: eZ80
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 1 MB
• Interface Type: Cable
• Maximum Clock Frequency: 20 MHz
• Operating Supply Voltage: 0 V to 3.3 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP
• Development Tools By Supplier: eZ80F920200ZCOG
• Minimum Operating Temperature: 0 C
• For Use With/related Products: eZ80F92
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3157; EZ80F920120MOD

Serial Peripheral Interface
PS015308-0404
The Serial Peripheral Interface (SPI) is a synchronous interface allowing several SPI-type
devices to be interconnected. The SPI is a full-duplex, synchronous, character-oriented
communication channel that employs a four-wire interface. The SPI block consists of a
transmitter, receiver, baud rate generator, and control unit. During an SPI transfer, data is
sent and received simultaneously by both the master and the slave SPI devices.
In a serial peripheral interface, separate signals are required for data and clock. The SPI
may be configured as either a master or a slave. The connection of two SPI devices (one
master and one slave) and the direction of data transfer is demonstrated in Figures 28 and
29 .
Figure 28.SPI Master Device
Figure 29.SPI Slave Device
ENABLE
DATAIN
DATAIN
CLKIN
SS
MISO
SS
MOSI
SCK
Bit 0
Bit 0
Baud Rate
Generator
P R E L I M I N A R Y
8-Bit Shift Register
8-Bit Shift Register
MASTER
SLAVE
Bit 7
Bit 7
MISO
SCK
DATAOUT
CLKOUT
DATAOUT
Product Specification
Serial Peripheral Interface
eZ80F92/eZ80F93
132