4.3.1. ID Register, SYS_ID

The SYS_ID register at 0x10000000 is a read-only register that identifies the board type, and revision. Figure 4.2 shows the bit assignment of the register.

Figure 4.2. ID Register, SYS_ID

ID Register, SYS_ID

Table 4.6 describes the baseboard ID Register assignment. The register value depends on the image loaded into the FPGA.

Table 4.6. ID Register, SYS_ID bit assignment

Bits

Access

Description

[31:28]

Read-only

Board revision:

0x0 = Rev A

0x1 = Rev B

0x2 = Rev C

[27:16]

Read-only

HBI board number (0x140)

[15:12]

Read-only

Build variant of board (from BOM)

[11:8]

Read-only

Bus architecture

0x4 = AHB

0x5 = AXI

[7:0]

Read-only

FPGA build


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