MC68HC711KS2MFN4 Freescale Semiconductor, MC68HC711KS2MFN4 Datasheet - Page 169

• Manufacturer Part Number: MC68HC711KS2MFN4
• Description: 32K EPROM - SLOW MODE
• Manufacturer: Freescale Semiconductor

M68HC11K Family
MOTOROLA
2
SPI STATUS REGISTER
MCU CLOCK
INTERNAL
DIVIDER
SELECT
÷4
16
SPI CONTROL
32
SPI CLOCK (MASTER)
A single MCU register, the serial peripheral data register (SPDR) is used
both to read input data from the read buffer and to write output data to
the transmit shift register.
Figure 8-1
SPI INTERRUPT
REQUEST
Figure 8-1. SPI Block Diagram
Serial Peripheral Interface (SPI)
8
shows the SPI block diagram.
MSTR
SPE
DATA BUS
INTERNAL
MSB
8
8/16-BIT SHIFT REGISTER
READ DATA BUFFER
8
SPI CONTROL REGISTER
CLOCK
LOGIC
LSB
CLOCK
Serial Peripheral Interface (SPI)
S
M
M
S
S
M
SPI Functional Description
Technical Data
MISO
MOSI
SCK
PD2
PD3
PD4
PD5
SS
169