mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 127

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
RECEIVER/ERROR CPU INTERRUPT REQUEST
TRANSMITTER CPU INTERRUPT REQUEST
SPMSTR
DIVIDER
CLOCK
CGMOUT ÷ 2
FROM SIM
SHIFT REGISTER
GENERATOR
MASTER MCU
BAUD RATE
÷ 128
SPE
÷ 32
÷ 2
÷ 8
Figure 10-3. Full-Duplex Master-Slave Connections
SPR1
Figure 10-2. SPI Module Block Diagram
SELECT
CLOCK
RESERVED
RESERVED
MC68HC908JW32 Data Sheet, Rev. 5
SPR0
MISO
MOSI
SPSCK
SS
TRANSMIT DATA REGISTER
7
RECEIVE DATA REGISTER
CONTROL
6
SPI
SHIFT REGISTER
INTERNAL BUS
5
V
DD
4
3
MODF
OVRF
SPRF
SPTE
SPMSTR
2
SPSCK
MISO
MOSI
1
MODFEN
SS
ERRIE
SPRIE
SPTIE
SPE
CLOCK
0
LOGIC
CPHA
R
SHIFT REGISTER
CPOL
SLAVE MCU
SPWOM
M
S
CONTROL
LOGIC
Functional Description
PIN
MISO
MOSI
SPSCK
SS
127