MC68HC908BD48 Datasheet, PDF (166/290 Pages) Freescale Semiconductor, Inc – Microcontrollers

Universal Serial Bus Module (USB)
13.5.1 USB Address Register (UADR)
Address: $0029
Bit 7
6
5
4
3
2
1
Read:
USBEN
Write:
UADD6
UADD5
UADD4
UADD3
UADD2
UADD1
Reset: 0
0
0
0
0
0
0
Figure 13-1. USB Address Register (UADR)
Bit 0
UADD0
0
USBEN — USB Enable
This read/write bit enables/disables the USB module. When USBEN
bit is clear, USB will not respond to any tokens, but still can detect
USB reset signal, or EOP signals, and non-IDLE state if in Suspend
Mode. Reset clears this bit. After USB reset, software will set this bit
to enable USB.
1 = USB module enabled
0 = USB module disabled
UADD[6:0] — USB Address
These bits specify the USB address of the device. Reset clears these
bits to $00, the default address.
13.5.2 USB Interrupt Register (UINTR)
Address: $002A
Bit 7
6
5
4
3
2
1
Read: TBEF RBFF EOPIF RSTIF
TBIE
Write:
RBIE EORIE
Reset: 0
0
0
0
0
0
0
= Unimplemented
Figure 13-2. USB Interrupt Register (UINTR)
Bit 0
RSTIE
0
Technical Data
166
Universal Serial Bus Module (USB)
MC68HC908BD48 — Rev. 1.0
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