Lucent Technologies manual USS-720 Setup Register Address Bit Symbol, Reserved

USS-720Instant USB							Preliminary Data Sheet, Rev. 5
USB-to-IEEE1284 Bridge								September 1999
IEEE 1284 Port (continued)
USS-720 Setup Register
Table 29. USS-720 Setup Register
		USS-720 Setup Register						Address: 8
Bit	7	6	5		4	3	2	1	0
Symbol	Reserved	Reserved	Reserved		Reserved	Reserved	Reserved	Filter Software	Filter
								Override	Enable
Access	R/W	R/W		R/W	R/W	R/W	R/W	R/W	R/W
Default	0	0	0		0	0	0	0	1
Bit	Symbol					Bit Description
7	Reserved			Reserved.
6	Reserved			Reserved.
5	Reserved			Reserved.
4	Reserved			Reserved.
3	Reserved			Reserved.
2	Reserved			Reserved.
1	Filter Software Override			Filter Software Override. When this bit is set, software can control the
				digital filtering of incoming parallel port signals with the Filter Enable bit.
				When clear, filters are controlled by the pull-up or pull-down stage of the
				SUSPEND pin. (See Filter Bypass Mode.)
0	Filter Enable			Filter Enable. Controls digital filtering of incoming parallel port signals
				when the Filter Software override bit is set. Setting to 1 enables filtering;
				clearing this bit disables filtering.

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