Warm Boot Start Address Register (10000) - Warm Boot Start Address Register (10000)

Warm Boot Start Address Register (10000) - Warm Boot Start Address Register (10000) - UG570

UltraScale Architecture Configuration User Guide (UG570)

Document ID

UG570

Release Date

2025-03-04

Revision

1.20.1 English

The warm boot start address register (WBSTAR) specifies the MultiBoot address location to be used when the IPROG command is applied. The name of each bit position in the warm boot start address register (WBSTAR) is given in the following table and described in the subsequent table.

Table 1. WBSTAR Register
Description	RS[1:0]		RS_TS_B	START_ADDR
Bit Index	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Value	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Table 2. WBSTAR Register Description
Name	Bit Index	Description
RS[1:0]	[31:30]	RS[1:0] pin value on next warm boot in BPI mode. The default is `00`.
RS_TS_B	29	RS[1:0] pins 3-state enable: `0`: 3-state enabled (RS[1:0] disabled) (default) `1`: 3-state disabled (RS[1:0] enabled)
START_ADDR	[28:0]	Next bitstream start address. The default start address is address zero.