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9.4.5 USB HUB Address Register (HADDR)
NOTE:
MC68HC(7)08KH12
Rev. 1.1
—
Freescale Semiconductor
Address:
$0058
Bit 7
6
Read:
USBEN
ADD6
Write:
Reset:
0**
0
0** = Reset by POR only
Figure 9-6. USB HUB Address Register (HADDR)
USBEN — USB Module Enable
This read/write bit enables and disables the USB module. When
USBEN is cleared, the USB module will not respond to any tokens
and the external regulated output REGOUT will be turned off.
**USBEN bit can only be cleared by a POR reset.
1 = USB function enabled
0 = USB function disabled, USB transceiver is also disabled to
save power.
ADD6-ADD0 — USB HUB Function Address
These bits specify the address of the HUB function. Reset clears these
bits.
5
4
3
ADD5
ADD4
ADD3
0
0
0
2
1
Bit 0
ADD2
ADD1
ADD0
0
0
0
Advance Information
127
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