MCCIRM Freescale Semiconductor / Motorola, MCCIRM Datasheet - Page 19

• Manufacturer Part Number: MCCIRM
• Description: MCCIRM Multi-Channel Communications Interface Reference Manual
• Manufacturer: Freescale Semiconductor / Motorola

Reference Manual — Multichannel Communication Interface
2.1 Contents
2.2 Introduction
Multichannel Communication Interface — Rev. 1.0
MOTOROLA
2.2
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.4
2.4.1
2.4.2
The MCCI has eight external pins. When not being used by the SPI or
SCI submodules, these pins can be used as general-purpose I/O
(input/output) port pins.
The MCCI global registers shown in this section affect the function of
both SPI (serial peripheral interrupt) and SCI (serial communications
interface) pins:
Refer to
on these registers.
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Freescale Semiconductor, Inc.
For More Information On This Product,
MCCI data direction register, MDDR
MCCI pin assignment register, MPAR
MCCI port data register, MPDR
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
SPI Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
SCI Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.7 Pin Control and General-Purpose I/O
Slave Select (SS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
SPI Serial Clock (SCK). . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Master In/Slave Out (MISO) . . . . . . . . . . . . . . . . . . . . . . . . .21
Master Out/Slave In (MOSI) . . . . . . . . . . . . . . . . . . . . . . . . .21
Receive Data Pins (RXDA and RXDB) . . . . . . . . . . . . . . . .22
Transmit Data Pins (TXDA and TXDB) . . . . . . . . . . . . . . . .22
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Signal Descriptions
Section 2. Signal Descriptions
for more information
Reference Manual
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