MC9S08GB60 Datasheet, PDF (191/290 Pages) Motorola, Inc – Microcontrollers

Block Diagrams
SPE
ENABLE
SPI SYSTEM
LSBFE
Tx BUFFER (WRITE SPI1D)
SHIFT
OUT
SPI SHIFT REGISTER
SHIFT
IN
Rx BUFFER (READ SPI1D)
SHIFT
DIRECTION
SHIFT Rx BUFFER Tx BUFFER
CLOCK
FULL
EMPTY
SPC0
BIDIROE
PIN CONTROL
M
S
M
S
MOSI1
(MOMI)
MISO1
(SISO)
BUS RATE
CLOCK
SPIBR
CLOCK GENERATOR
MSTR
MASTER/SLAVE
MODE SELECT
CLOCK
LOGIC
MODE FAULT
DETECTION
MASTER CLOCK
SLAVE CLOCK
MODFEN
SSOE
M
S
MASTER/
SLAVE
SPSCK1
SS1
SPRF
SPTEF
SPTIE
MODF
SPIE
Figure 12-3. SPI Module Block Diagram
SPI
INTERRUPT
REQUEST
MC9S08GB/GT Data Sheet, Rev. 2.3
Freescale Semiconductor
191