MC68HC711D3_05 Datasheet, PDF (78/138 Pages) Freescale Semiconductor, Inc – Microcontrollers

Serial Peripheral Interface (SPI)
PH2
(INTERNAL)
S
M
DIVIDER
÷2 ÷4 ÷16 ÷32
MSB
LSB
S
8-BIT SHIFT REGISTER
M
READ DATA BUFFER
SELECT
SPI CLOCK (MASTER)
CLOCK
CLOCK
M
LOGIC
S
SPI CONTROL
MSTR
SPE
MISO
PD2
MOSI
PD3
SCK
PD4
SS
PD5
SPI STATUS REGISTER
SPI CONTROL REGISTER
8
SPI INTERRUPT
REQUEST
INTERNAL
DATA BUS
Figure 7-1. SPI Block Diagram
MC68HC711D3 Data Sheet, Rev. 2.1
78
Freescale Semiconductor