Broadcom BCM88790 Device Errata User guide

Broadcom 88790-ER106-PUB

September 10, 2020

BCM88790

Device Errata

Errata

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BCM88790 Errata Device Errata

Broadcom 88790-ER106-PUB

BCM88790 Errata Device Errata

Chapter 1: Introduction

This errata sheet lists all known errata for the Broadcom

BCM88790 self-routing switching element with 50-Gb/s SerDes.

Broadcom 88790-ER106-PUB

BCM88790 Errata Device Errata

Chapter 2: Device Errata

2.1 EID#702 DFL Deny Interrupts Might not Be Valid

Description The LCM interrupt register contains a list of admission rejection (deny) interrupts, which are triggered based on the

deny reason.

Erratum When triggered, the LCM.AdmitDenyLCMFullInt interrupt may trigger additional interrupts

(LCM.AdmitDenyDueSharedMemInt, LCM.AdmitDenyDueDtmInt, and LCM.AdmitDenyDueLatencyInt), making

them false alarms.

Workaround If LCM.AdmitDenyLCMFullInt is set, ignore the following interrupts:

 LCM.AdmitDenyDueSharedMemInt

 LCM.dmitDenyDueDtmInt

 LCM.dmitDenyDueLatencyInt interrupts