Abov MC96F6432S Series - Spi 2; Overview; Block Diagram

170
MC96F6432S
ABOV Semiconductor Co., Ltd.
11.10 SPI 2
11.10.1 Overview
There is serial peripheral interface (SPI 2) one channel in MC96F6432S. The SPI 2 allows synchronous serial data
transfer between the external serial devices. It can do Full-duplex communication by 4-wire (MOSI2, MISO2, SCK2,
SS2), support master/slave mode, can select serial clock (SCK2) polarity, phase and whether LSB first data transfer or
MSB first data transfer.
11.10.2 Block Diagram
P
r
e
s
c
a
l
e
r
fx
M
U
X
fx/4
fx/8
fx/32
fx/64
fx/128
fx/16
fx/2
SCK
Control
MS
SCK2
3
SPICR[2:0]
M
U
X
MS
CPHA
Edge
Detector
CPOL
SPI
Control Circuit
WCOL
SPIEN
INT_ACK
Clear
To interrupt
block
SPIIFR
8-bit Shift
Register
M
U
X
MS
SPIDR
(8-bit)
FLSB
8
D
E
P
MISO2
MOSI2
SS2
SS
Control
MSSSENA
Internal Bus Line
FXCH
Figure 11.49 SPI 2 Block Diagram