Infineon Technologies TC1784, User Manual

Page: 1961 / 2350

TC1784
Micro Link Interface (MLI)
User´s Manual 22-12 V1.1, 2011-05
MLI, V2.0
22.1.2.2 Copy Base Address Frame
With a Copy Base Address Frame, the two parameters of a Remote Window are
transferred from the transmitting controller to the receiving controller to initialize or to
redirect the Remote Window.
The Copy Base Address Frame contains the following parts:
•
Header:
The header starts with frame code FC = 00
B
followed by the pipe number PN of the
pipe targeted by the transmitted base address bits and the size code.
• Remote Window address location:
The 28 most significant bits of the 32-bit base address bits can be programmed by
the transmitting controller (the 4 LSBs are considered as 0). The base address of a
Remote Window has to be aligned to its size, e.g. a window of 1 Kbyte has to start at
1Kbyte address boundaries.
• Remote Window size:
The size is defined by the 4-bit coded buffer size BS. The maximum size is 64 Kbytes.
• Parity bit P
Figure 22-9 Copy Base Address Frame
More details about the Copy Base Address Frame handling of the MLI module are
described on
Page 22-28 .
Table 22-2 BS Coding
Buffer Size
Code BS Remote Window Size
(also named Buffer Size) Number m of
Offset Bits
0000
B
2 bytes m = 1
0001
B
4 bytes m = 2
... ... ...
1110
B
32 Kbytes m = 15
1111
B
64 Kbytes m = 16
MCA06294_mod
P
Base Address (28-bit) 0
0 2 4
BS
32 36 3 1 31 35
0
Header
PN