Multi Chain SVF Operation with Configuration Memory Attached to First Device - 2024.1 English

Vivado Design Suite User Guide: Programming and Debugging (UG908)

Document ID
UG908
Release Date
2024-05-30
Version
2024.1 English

In this example, to access the ku9 device, a SMASK value of 0000 0011 1111 (0x3f) is used with the TIR and TDR instructions. To access the second device in the chain, the mask value is pushed in followed by SIR and SDR instructions. SIR and SDR instructions combine HIR, HDR, TIR, and TDR information.

If the configuration memory attached to the first device (xcku11) needs to be programmed, the SVF generated commands are different:

Figure 1. Multi Chain SVF Operation Example with Configuration Memory Attached to First Device

HIR 6 TDI (3f) SMASK (3f) ;
TIR 0 ;
HDR 1 TDI (00) SMASK (01) ;
TDR 0 ;
// config/idcode
SIR 6 TDI (09) ;
SDR 32 TDI (00000000) TDO (04a4e093) MASK (0fffffff) ;
// config/jprog
STATE RESET;
STATE IDLE;
SIR 6 TDI (0b) ;
SIR 6 TDI (14) ;
// Modify the below delay for config_init operation (0.100000 sec typical, 0.100000 
sec maximum)
RUNTEST 0.100000 SEC;
// config/jprog/poll
RUNTEST 10000 TCK;
SIR 6 TDI (14) TDO (11) MASK (31) ;
// config/slr
SIR 6 TDI (05) ;