TC1796
System Units (Vol. 1 of 2)
Introduction
User’s Manual 1-24 V2.0, 2007-07
Intro, V2.0
1.3.1.5 Micro Link Serial Bus Interface
The Micro Link Interface is a fast synchronous serial interface that makes it possible to
exchange data between microcontrollers of the 32-bit AUDO microcontroller family
without intervention of a CPU or other bus masters. Figure 1-6 shows how two
microcontrollers are typically connected together via their MLI interfaces. The MLI
operates in both microcontrollers as a bus master on the system bus.
Figure 1-6 Typical Micro Link Interface Connection
Features
• Synchronous serial communication between MLI transmitters and MLI receivers
located on the same or on different microcontroller devices
• Automatic data transfer/request transactions between local/remote controller
• Fully transparent read/write access supported (= remote programming)
• Complete address range of remote controller available
• Specific frame protocol to transfer commands, addresses and data
• Error control by parity bit
• 32-bit, 16-bit, and 8-bit data transfers
• Programmable baud rate: max. f
MLI
/2 (= 37.5 Mbit/s @ 75 MHz module clock)
• Multiple remote (slave) controllers supported
MCA05578
Controller 1
CPU
Peripheral
B
Peripheral
A
MLI
System Bus
Controller 2
CPU
Peripheral
D
Peripheral
C
MLI
System Bus
Memory Memory
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