PEB20256E-V21 Infineon Technologies, PEB20256E-V21 Datasheet - Page 60
PEB20256E-V21
Manufacturer Part Number
PEB20256E-V21
Description
IC CONTROLLER INTERFACE 388-BGA
Manufacturer
Infineon Technologies
Datasheet
1.PEB20256E-V21.pdf
(232 pages)
Specifications of PEB20256E-V21
Function
Multichannel Network Interface Controller (MUNICH)
Interface
HDLC, PPP, Serial, TMA
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
200mA
Power (watts)
3W
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
388-BBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Circuits
-
Other names
PEB20256E-V21
PEB20256E-V21IN
PEB20256E-V21IN
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PEB20256E-V21
Manufacturer:
MAX
Quantity:
63
Company:
Part Number:
PEB20256E-V21
Manufacturer:
Infineon Technologies
Quantity:
10 000
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•
Figure 4-7
Although the data management unit works 32-bit oriented, it is possible to begin a
transmit data section at an uneven address. The two least significant bits of the transmit
data pointer determine the beginning of the data section and the number of bytes in the
first DWORD of the data section, respectively. In receive direction the address of the
data sections must be DWORD aligned.
4.3.2
Each receive descriptor is initialized by the host CPU and stored in system memory as
part of a linked list. The MUNICH256 reads a descriptor, when requested to do so from
the host by a receive command or after branching from one receive descriptor to the next
receive descriptor. Each receive descriptor contains four DWORDs, where the first three
DWORDs contain link and packet information and the last DWORD contains status
information. Once the descriptor is processed the status information will be written back
to system memory by the MUNICH256 (Receive status update). When the MUNICH256
Data Sheet
01
11
01
0
0
0
0
0
1
0
0
0
Linked list in system memory in little endian mode
Next Descriptor Pointer
Next Descriptor Pointer
Next Descriptor Pointer
Receive Descriptor
Data Pointer
0 0
Data Pointer
0 0
Data Pointer
0 0
0
1
2
Descriptor Structure
0 0
0 0
0 0
0
0
0
0C
0C
10
09
08
08
H
H
H
H
H
H
03
07
0B
0F
13
H
H
H
H
H
0A
02
06
0E
12
H
H
H
H
H
60
01
05
09
0D
11
H
H
H
H
H
00
04
08
0C
10
14
H
H
H
H
H
H
Functional Description
Data on serial link
0A
0B
0C
0D
CRC
CRC
7E
00
01
02
03
04
05
06
07
08
09
0E
0F
10
11
12
13
14
7E
PEB 20256 E
PEF 20256 E
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Flag
Flag
CRC
Payload
04.2001
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