MC912DG128A Motorola, MC912DG128A Datasheet - Page 223

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

1-msi
MOTOROLA
Contents
Introduction
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Serial Communication Interface (SCI). . . . . . . . . . . . . . . . . . . . . . . . 224
Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Port S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
The multiple serial interface (MSI) module consists of three independent
serial I/O sub-systems: two serial communication interfaces (SCI0 and
SCI1) and the serial peripheral interface (SPI). Each serial pin shares
function with the general-purpose port pins of port S. The SCI
subsystems are NRZ type systems that are compatible with standard
RS-232 systems. These SCI systems have a new single wire operation
mode which allows the unused pin to be available as general-purpose I/
O. The SPI subsystem, which is compatible with the M68HC11 SPI,
includes new features such as SS output and bidirectional mode.
Multiple Serial Interface
Multiple Serial Interface
Multiple Serial Interface
MC68HC912DT128A Rev 2.0
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