mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 244
mc68hc08qa24
Manufacturer Part Number
mc68hc08qa24
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC08QA24.pdf
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Serial Peripheral Interface (SPI)
18.2 Introduction
18.3 Features
Technical Data
242
18.13.3
18.13.4
18.13.5
18.14 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
18.14.1
18.14.2
18.14.3
This section describes the serial peripheral interface (SPI) module,
which allows full-duplex, synchronous, serial communications with
peripheral devices.
Features of the SPI module include:
•
•
•
•
•
•
•
•
•
•
•
Full-duplex operation
Master and slave modes
Double-buffered operation with separate transmit and receive
registers
Four master mode frequencies (maximum = bus frequency ÷ 2)
Maximum slave mode frequency = bus frequency
Serial clock with programmable polarity and phase
Two separately enabled interrupts with CPU service:
– SPRF (SPI receiver full)
– SPTE (SPI transmitter empty)
Mode fault error flag with CPU interrupt capability
Overflow error flag with CPU interrupt capability
Programmable wired-OR mode
I
2
C (inter-integrated circuit) compatibility
SPSCK (Serial Clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
SS (Slave Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
V
SPI Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
SPI Status and Control Register . . . . . . . . . . . . . . . . . . . .268
SPI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Serial Peripheral Interface (SPI)
SS
(Clock Ground). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Freescale Semiconductor
MC68HC08QA24
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