TC1784
Micro Link Interface (MLI)
User´s Manual
22-6
V1.1, 2011-05
MLI, V2.0
22.1.1.3 MLI Communication Principles
The communication principle of the MLI modules allows data to be transferred between
a Local and a Remote Controller without intervention of a CPU in the Remote Controller.
Data transfers are always triggered in the Local Controller by read or write operations to
an address location in a Transfer Window. All control tasks, address and data
transmissions that are required for the data transfer/request between Local and Remote
Controller can be handled autonomously by the two connected MLI modules.
Figure 22-2 MLI Communication Principles
Write Access to a Transfer Window
A write access to a location within a Transfer Window of the transmitting (Local)
controller is detected by the MLI transmitter. This detection initiates a transfer of the data
that has been written to the Transfer Window together with the write offset to the MLI of
the receiving controller. The receiving controller stores the data internally and can also
automatically place the data in the Remote Window of the receiving controller (at the
address location defined by the write offset plus the base address).
Read Access from a Transfer Window
A read access from a location of a Transfer Window in the Local Controller is detected
by the MLI transmitter and delivers dummy data. This detection initiates a transfer of the
read offset from the Local microcontroller to the MLI receiver to request data from the
Remote Controller. This data can be automatically read or prepared by a CPU in the
Remote Controller. When the requested data is available in the Remote Controller, it is
MCA06286_mod
Transmitter
MLI Module
Local Controller
Remote Controller
Receiver
Address
Space
Transfer
Window
Write
Read
Receiver
MLI Module
Transmitter
Complete
Address
Space
Remote
Window
Interrupt
1)
2)
1) Transmission of write data (and optinally write offset) or read offset
2) Transmission of read data
Содержание TC1784
Страница 1: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 3: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 950: ...TC1784 Direct Memory Access Controller DMA User s Manual 11 132 V1 1 2011 05 DMA V3 03 ...
Страница 1949: ...TC1784 General Purpose Timer Array GPTA v5 User s Manual 21 297 V1 1 2011 05 GPTA v5 V1 14 ...
Страница 2350: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG Doc_Number ...