MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 284

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Serial Peripheral Interface (SPI)
18.2 Introduction
18.3 Features
Advance Information
284
18.13.3
18.13.4
18.13.5
18.14 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
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:
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Full-duplex operation
Master and slave modes
Double-buffered operation with separate transmit and receive
registers
Four master mode frequencies (maximum = bus frequency
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) . . . . . . . . . . . . . . . . . . . . . . . . . . . .307
SS (Slave Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308
V
SPI Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310
SPI Status and Control Register . . . . . . . . . . . . . . . . . . . .312
SPI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316
Serial Peripheral Interface (SPI)
SS
(Clock Ground). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
MC68HC708AS48
MOTOROLA
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Rev. 4.0
2)