NXP Semiconductors KL25 Series - Peripheral ID Register (Usbx_Perid)

USB memory map (continued)
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
4007_20FC Endpoint Control register (USB0_ENDPT15) 8 R/W 00h
35.4.23/
639
4007_2100 USB Control register (USB0_USBCTRL) 8 R/W C0h
35.4.24/
640
4007_2104 USB OTG Observe register (USB0_OBSERVE) 8 R 50h
35.4.25/
641
4007_2108 USB OTG Control register (USB0_CONTROL) 8 R/W 00h
35.4.26/
642
4007_210C USB Transceiver Control Register 0 (USB0_USBTRC0) 8 R/W 00h
35.4.27/
642
4007_2114 Frame Adjust Register (USB0_USBFRMADJUST) 8 R/W 00h
35.4.28/
643
35.4.1 Peripheral ID register (USBx_PERID)
Reads back the value of 0x04. This value is defined for the USB peripheral.
Address: 4007_2000h base + 0h offset = 4007_2000h
Bit 7 6 5 4 3 2 1 0
Read 0 ID
Write
Reset
0 0 0 0 0 1 0 0
USBx_PERID field descriptions
Field Description
7–6
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
5–0
ID
Peripheral Identification
This field always reads 0x4h.
Chapter 35 Universal Serial Bus OTG Controller (USBOTG)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 623