PT7A6632J PERICOM [Pericom Semiconductor Corporation], PT7A6632J Datasheet - Page 23

• Manufacturer Part Number: PT7A6632J
• Description: PT7A6632 32-Channel HDLC Controller
• Manufacturer: PERICOM [Pericom Semiconductor Corporation]

PT019(05/02)
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Figure 22. Organization and Linking of Data or Command Buffers
* Formats are different for Data buffer and Command buffer, and differs with MDFS
Address
m+7+1
m+7+n
p+7+1
p+7+r
i+7+1
i+7+k
m+7
p+7
i+7
m
p
i
~ ~
~ ~
~ ~
7
7
7
Next Buffer Start Address
Next Buffer Start Address
Next Buffer Start Address
2 Bytes of Channel Mode
2 Bytes of Channel Mode
2 Bytes of Channel Mode
& Rate Definition Data
& Rate Definition Data
k Bytes of User s Data
& Rate Definition Data
r Bytes of User s Data
n Bytes of User s Data
Buffer Size
Data length
Data length
Data length
Buffer Size
Buffer Size
Status byte
Status byte
Status byte
Buffer N
Buffer 2
Buffer 1
or
or
or
23
PT7A6632 32-Channel HDLC Controller
0
0
0
~ ~
~ ~
~ ~
8 Bytes of Buffer Descriptor*
Data or
Command
8 Bytes of Buffer Descriptor*
Data or
Command
8 Bytes of Buffer Descriptor*
Data or
Command
Data Sheet
Ver:2