SBAA637
June 2024
AFE7950
1
Abstract
Trademarks
1
Introduction
2
SPI Failure During Bring-Up
2.1
Detail Regarding Chip Readouts
2.2
Failure and Fix for Chip Read Check
2.3
Poll Check for SPI Access for PLL Page
2.4
Failure and Fix for the SPI Poll Check for PLL Page Access
2.5
Read Check Indicating Status of Fuse Farm Autoload
2.6
Failure and Fix for Autoload Read Check
3
Macro Failure Breaking the Bring-Up Flow
3.1
Read Check for Macro Error and Poll Check for Macro Done
3.2
Failure and Fix for Macro Error and Poll check for Macro Done
4
AFE PLL Failure
4.1
Read Check for PLL Lock
4.2
Failure and Fix for Read Check of PLL
5
AFE Internal Sysref Flag Failure
5.1
Read Check Status of Sysref Flag Bit
5.2
Failure and Fix for Read Check Status of Sysref Flag Bit
6
JESD Link Check Failure
6.1
Multiple Read Checks Indicating Status of JESD Linkup
6.2
Failure and Fix for JESD Error
7
Validating Serdes and JESD Link using CAPI
7.1
Useful Serdes Debug CAPIs
7.2
Useful JESD Debug CAPIs
8
TX Chain Validation
9
RX Chain Validation
10
Device Health
11
Summary
12
References
Application Note
Debugging AFE7950 for Run Time and Post Bring-Up Failure