z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 140

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Operation
PS019921-0308
Figure 22. SPI Configured as a Master in a Single Master, Multiple Slave System
To Slave #2’s SS Pin
To Slave #1’s SS Pin
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.
From Master
From Master
From Master
To Master
From Slave
To Slave
To Slave
Figure 23. SPI Configured as a Slave
VCC
SS
MISO
MOSI
SCK
MISO
MOSI
SCK
SS
GPIO
GPIO
Bit 7
8-bit Shift Register
Bit 0
SPI Slave
8-bit Shift Register
SPI Master
Bit 0
Bit 7
Baud Rate
Generator
Z8 Encore! XP
Product Specification
Serial Peripheral Interface
®
F64XX Series
126