mc68hc908gp32 Freescale Semiconductor, Inc, mc68hc908gp32 Datasheet - Page 177

• Manufacturer Part Number: mc68hc908gp32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
RECEIVER/ERROR CPU INTERRUPT REQUEST
TRANSMITTER CPU INTERRUPT REQUEST
SPMSTR
DIVIDER
CLOCK
BUSCLK
SHIFT REGISTER
GENERATOR
MASTER MCU
BAUD RATE
÷ 128
SPE
÷ 32
÷ 2
÷ 8
Figure 15-3. Full-Duplex Master-Slave Connections
SPR1
SELECT
CLOCK
Figure 15-2. SPI Module Block Diagram
SPR0
MC68HC908GP32 Data Sheet, Rev. 10
MISO
MOSI
SPSCK
SS
7
CONTROL
TRANSMIT DATA REGISTER
RECEIVE DATA REGISTER
6
SPI
SHIFT REGISTER
INTERNAL BUS
5
4
V
DD
3
MODF
OVRF
SPRF
SPTE
SPMSTR
2
1
SPSCK
MODFEN
ERRIE
MISO
MOSI
SPTIE
SPRIE
SPE
0
CLOCK
LOGIC
CPHA
SS
CPOL
SPWOM
SHIFT REGISTER
SLAVE MCU
M
S
CONTROL
LOGIC
PIN
Functional Description
MISO
MOSI
SPSCK
SS
177