MC68HC812A4 Datasheet, PDF (215/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Multiple Serial Interface (MSI)
SPI Features
13.4 SPI Features
• Full-duplex operation
• Master mode and slave mode
• Programmable slave-select output option
• Programmable bidirectional data pin option
• Interrupt-driven operation with two flags
– Transmission complete
– Mode fault
• Read data buffer
• Serial clock with programmable polarity and phase
• Reduced drive control for lower power consumption
• Programmable open-drain output option
For additional information, refer to Section 15. Serial Peripheral
Interface (SPI)
13.5 MSI Block Diagram
RxD0
PS0
SCI0
TxD0
PS1
RxD1
PS2
SCI1
TxD1
PS3
MSI
MOSI/MOMI
PS4
MISO/SISO
PS5
SPI0
SCK
PS6
CS/SS
PS7
Figure 13-1. Multiple Serial Interface Block Diagram
Advance Information
MOTOROLA
Multiple Serial Interface (MSI)
MC68HC812A4 — Rev. 3.0
215