RELEASED
PM7383 FREEDM-32A256
DATASHEET
PMC-2010336
ISSUE 1
FRAME ENGINE AND DATA LINK MANAGER 32A256
Register 0x224 : RHDL Maximum Packet Length
Bit
Type
Function
Default
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
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
MAX[15]
MAX[14]
MAX[13]
MAX[12]
MAX[11]
MAX[10]
MAX[9]
MAX[8]
MAX[7]
MAX[6]
MAX[5]
MAX[4]
MAX[3]
MAX[2]
MAX[1]
MAX[0]
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
This register configures the maximum legal HDLC packet byte length.
MAX[15:0]:
The maximum HDLC packet length (MAX[15:0]) configures the FREEDM-
32A256 to reject HDLC packets longer than a maximum size when LENCHK
is set high. Receive packets with total length, including address, control,
information and FCS fields, greater than MAX[15:0] bytes are aborted. When
LENCHK is set low, aborts are not generated regardless of packet length and
MAX[15:0] must be set to ‘hFFFF.
PROPRIETARY AND CONFIDENTIAL
116
PMC [ PMC-SIERRA, INC ]
