Z8F6421PM020SC Datasheet, PDF (146/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
126
VCC
To Slave #2’s SS Pin
To Slave #1’s SS Pin
From Slave
To Slave
SS
GPIO
GPIO
MISO
MOSI
SPI Master
8-bit Shift Register
Bit 0
Bit 7
To Slave
SCK
Baud Rate
Generator
Figure 23. SPI Configured as a Master in a Single Master, Multiple Slave System
From Master
To Master
From Master
SPI Slave
SS
MISO
MOSI
8-bit Shift Register
Bit 7
Bit 0
From Master
SCK
Figure 24. SPI Configured as a Slave
Operation
The SPI is a full-duplex, synchronous, character-oriented channel that supports a four-wire
interface (serial clock, transmit, receive and Slave select). The SPI block consists of a
transmit/receive shift register, a Baud Rate (clock) Generator and a control unit.
PS019915-1005
Serial Peripheral Interface