AMBA Design Kit Technical Reference Manual - ARM Information ...

APB ComponentsThe four 8-bit peripheral identification registers are described in the followingsubsections:• Peripheral Identification Register 0• Peripheral Identification Register 1• Peripheral Identification Register 2 on page 4-6• Peripheral Identification Register 3 on page 4-6.Peripheral Identification Register 0The RPCPERIPHID0 register is hard-coded and the fields within the register determinethe reset value. Table 4-2 lists the register bit assignments.Table 4-2 RPCPERIPHID0 Register bit assignmentsBits Name Description[31:8] - Reserved, read undefined must read as zeros[7:0] PartNumber0 These bits read back as 0x09Peripheral Identification Register 1The RPCPERIPHID1 register is hard-coded and the fields within the register determinethe reset value. Table 4-3 lists the register bit assignments.Table 4-3 RPCPERIPHID1 Register bit assignmentsBits Name Description[31:8] - Reserved, read undefined, must read as zeros[7:4] Designer0 These bits read back as 0x1[3:0] PartNumber1 These bits read back as 0x8ARM DDI 0243C Copyright © 2003, 2007 ARM Limited. All rights reserved. 4-5