Low Watermark Maximum Receive Frame Register (Offset: 0X504); Ape_Perfect_Match[1-4]_High_Reg (Offsets 0X540, 0X548, 0X550, 0X558); Ape_Perfect_Match[1-4]_Low_Reg (Offsets 0X544, 0X54C, 0X554, 0X55C); Sgmii Control Register (Offset: 0X5B0) - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide

Low Watermark Maximum Receive Frame Register (offset: 0x504)

Name
Reserved
TXFIFO Almost Empty
Threshold
Low Watermark Max Receive
Frames
APE_PERFECT_MATCH[1–4]_HIGH_REG (Offsets 0x540, 0x548,
0x550, 0x558)
There are total 4 Perfect (Destination Address) Match registers dedicated to APE in RX-MAC. These registers
hold the higher 2 octets of the matching address.
Name
Reserved
MAC High Address
APE_PERFECT_MATCH[1–4]_LOW_REG (Offsets 0x544, 0x54C,
0x554, 0x55C)
There are total 4 Perfect (Destination Address) Match registers dedicated to APE in RX-MAC. These registers
hold the lower 4 octets of the matching address.
Name
MAC Low Address

SGMII Control Register (offset: 0x5B0)

Name
Reserved
Broadcom
®
January 29, 2016 • 5718-PG108-R
Default
Bits Access Value
31:21 RO 0
20:16 RW 0xC
15:0 RW 0
Default
Bits Access Value
31:29 RO 000
15:0 RW 0x0000
Default
Bits Access Value
31:0 RW 0x0000
Default
Bits Access Value
– – –
Ethernet MAC (EMAC) Registers
Description
–
When the remaining entries of TXFIFO are less
than this threshold, TXFIFO_almost_empty will
be asserted. This value is used in conjunction
with Buffer Manager Mode register bit31 to
prevent EMAC TXFIFO underrun.
Specifies the number of good frames to receive
after RX MBUF Low Watermark has been
reached. After the RX MAC receives this number
of frames, it will drop subsequent incoming
frames until the MBUF High Watermark is
reached.
Default to zero (i.e., drop frames ones RX MBUF
Low Watermark is reached).
Description
–
Upper 2-bytes of APE's [1–4]th unicast address.
Description
Lower 4-bytes of APE's [1–4]th unicast address.
Description
–
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