z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 197

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS022006-0207
Figure 40. ESPI Configured as an SPI Master in a Single Master and Multiple Slave System
Figure 39. ESPI Configured as an SPI Master in a Single Master and Single Slave System
To Slave #2’s SS Pin
To Slave #1’s SS Pin
To Slave’s SS Pin
configured for the ESPI alternate function on the MOSI, MISO, and SCK pins. The GPIO
for the ESPI SS pin is configured in alternate function mode as well though software uses
any GPIO pin(s) to drive one or more slave select lines. If the ESPI SS signal is not used to
drive a slave select the SSIO bit must still be set to 1 in a single master system.
and
From Slave
Figure 40
From Slaves
To Slave
To Slave
To Slaves
To Slaves
illustrates the ESPI block configured as an SPI master.
MISO
MOSI
SCK
SS
MISO
MOSI
SCK
GPIO
GPIO
P R E L I M I N A R Y
Bit 0
Bit 0
8-bit Shift Register
8-bit Shift Register
ESPI Master
ESPI Master
Bit 7
Bit 7
Baud Rate
Baud Rate
Generator
Generator
Enhanced Serial Peripheral Interface
Product Specification
ZNEO
™
Z16F Series
Figure 39
183