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DS33Z41 Quad IMUX Ethernet Mapper
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Register Name:
LI.RMPSCH
Register Description:
Receive Maximum Packet Size Control High Register
Register Address:
103h
Bit # 7 6 5 4 3 2 1 0
Name RMX15 RMX14 RMX13 RMX12 RMX11 RMX10 RMX9 RMX8
Default 0 0 0 0 0 1 1 1
Bits 7 to 0: Receive Maximum Packet Size (RMX15 to RMX8). These 16 bits indicate the maximum allowable
packet size in bytes. The size includes the FCS bytes, but excludes bit/byte stuffing. Note: If the maximum packet
size is less than the minimum packet size, all packets are discarded. When packet processing is disabled, these
16 bits indicate the "packet" size the incoming data is to be broken into.
The maximum packet size allowable is 2016 bytes plus the FCS bytes. Any values programmed that are greater
than 2016 + FCS will have the same effect as 2016+ FCS value.
In X.86 mode, the X.86 encapsulation bytes are included in maximum size control.
Register Name:
LI.RPPSR
Register Description:
Receive Packet Processor Status Register
Register Address:
104h
Bit # 7 6 5 4 3 2 1 0
Name — — — — — REPC
RAPC RSPC
Default 0 0 0 0 0 0 0 0
Bit 2: Receive FCS Errored Packet Count (REPC). This read-only bit indicates that the receive FCS errored
packet count is non-zero.
Bit 1: Receive Aborted Packet Count (RAPC). This read-only bit indicates that the receive aborted packet count
is non-zero.
Bit 0: Receive Size Violation Packet Count (RSPC). This read-only bit indicates that the receive size violation
packet count is non-zero.