mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 263

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

18.5.1 Master Mode
MC68HC908AS60 — Rev. 1.0
RECEIVER/ERROR CPU INTERRUPT REQUEST
SPMSTR
DIVIDER
CLOCK
TRANSMITTER CPU INTERRUPT REQUEST
BUS CLOCK
NOTE:
SPE
128
32
2
8
SPR1
SELECT
The SPI operates in master mode when the SPI master bit, SPMSTR
(SPCR $0010), is set.
Configure the SPI modules as master and slave before enabling them.
Enable the master SPI before enabling the slave SPI. Disable the slave
SPI before disabling the master SPI. See
CLOCK
Figure 18-2. SPI Module Block Diagram
Freescale Semiconductor, Inc.
SPR0
For More Information On This Product,
Serial Peripheral Interface (SPI)
7
Go to: www.freescale.com
CONTROL
TRANSMIT DATA REGISTER
RECEIVE DATA REGISTER
6
SPI
SHIFT REGISTER
INTERNAL BUS
5
4
3
MODF
OVRF
SPRF
SPTE
SPMSTR
2
1
MODFEN
ERRIE
SPRIE
SPTIE
SPE
0
CLOCK
LOGIC
CPHA
CPOL
SPWOM
18.14.1 SPI Control
M
S
Serial Peripheral Interface (SPI)
CONTROL
LOGIC
PIN
Functional Description
MISO
MOSI
SPSCK
SS
Technical Data
Register.