Datasheet

ST72334J/N, ST72314J/N, ST72124J
73/153
SERIAL PERIPHERAL INTERFACE (Cont’d)
Figure 43. Serial Peripheral Interface Block Diagram
DR
Read Buffer
8-Bit Shift Register
Write
Read
Internal Bus
SPI
SPIE SPE SPR2 MSTR CPHA SPR0SPR1CPOL
SPIF
WCOL
MODF
SERIAL
CLOCK
GENERATOR
MOSI
MISO
SS
SCK
CONTROL
STATE
CR
SR
- ----
IT
request
MASTER
CONTROL