Information

USBx_PERID field descriptions
Field Description
7–6
Reserved
This read-only field is reserved and always has the value zero.
5–0
ID
Peripheral identification bits
These bits always read 0x04 (00_0100)
42.4.2 Peripheral ID Complement Register (USBx_IDCOMP)
The Peripheral ID Complement Register reads back the complement of the Peripheral ID
Register. For the USB Peripheral, this is the value 0xFB.
Addresses: USB0_IDCOMP is 4007_2000h base + 4h offset = 4007_2004h
Bit 7 6 5 4 3 2 1 0
Read 1 NID
Write
Reset
1 1 1 1 1 0 1 1
USBx_IDCOMP field descriptions
Field Description
7–6
Reserved
This read-only field is reserved and always has the value one.
These bits always read ones
5–0
NID
Ones complement of peripheral identification bits.
42.4.3 Peripheral Revision Register (USBx_REV)
This register contains the revision number of the USB Module.
Addresses: USB0_REV is 4007_2000h base + 8h offset = 4007_2008h
Bit 7 6 5 4 3 2 1 0
Read REV
Write
Reset
0 0 1 1 0 0 1 1
USBx_REV field descriptions
Field Description
7–0
REV
Revision
Indicate the revision number of the USB Core.
Memory Map/Register Definitions
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
1060 Freescale Semiconductor, Inc.