PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 368

• Manufacturer Part Number: PM5381-BI
• Description: ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
Register 0744H: RCFP Maximum Packet Length
MAXPL[16:1]
Bit
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The Maximum Packet Length (MAXPL[16:0]) bits are used to set the maximum packet
length. Only the top 16 bits of this 17 bit value are programmable. MAXPL[0] is
automatically set to logic 0. Packets larger than this length are terminated and marked with
an error. The remainder of the packet is discarded. This Maximum Packet Length defaults to
1.5 Kbytes. The packet length used here is defined as the number of bytes encapsulated into
the POS frame excluding byte stuffing but including the FCS. The default maximum packet
length is 1536 octets. The maximum packet length allowed is 128 Kbytes less 2 (131070
bytes). The value of MAXPL[16:1] must be greater than or equal to 0x03 but less than or
equal to 0xFFFA.
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
MAXPL[16]
MAXPL[15]
MAXPL[14]
MAXPL[13]
MAXPL[12]
MAXPL[11]
MAXPL[10]
MAXPL[9]
MAXPL[8]
MAXPL[7]
MAXPL[6]
MAXPL[5]
MAXPL[4]
MAXPL[3]
MAXPL[2]
MAXPL[1]
S/UNI-2488 Telecom Standard Product Datasheet
Default
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
Released
368