z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 139

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

Serial Peripheral Interface
Architecture
PS019921-0308
Figure 21. SPI Configured as a Master in a Single Master, Single Slave System
The Serial Peripheral Interface is a synchronous interface allowing several SPI-type
devices to be interconnected. SPI-compatible devices include EEPROMs, Analog-to-
Digital Converters, and ISDN devices. Features of the SPI include:
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•
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The SPI may be configured as either a Master (in single or multi-master systems) or a
Slave as displayed in
To Slave’s SS Pin
Full-duplex, synchronous, character-oriented communication
Four-wire interface
Data transfers rates up to a maximum of one-half the system clock frequency
Error detection
Dedicated Baud Rate Generator
From Slave
To Slave
To Slave
Figure 21
MISO
MOSI
SCK
SS
through
Bit 0
8-bit Shift Register
Figure
SPI Master
23.
Bit 7
Z8 Encore! XP
Baud Rate
Generator
Product Specification
Serial Peripheral Interface
®
F64XX Series
125