W681307DG Datasheet, PDF (113/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

W681307
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FACO
FACO[Bit 7]
FACO[Bit 6]
FACO[Bit 5]
FACO[Bit 4]
FACO[Bit 3]
FACO[Bit 2]
FACO[Bit 1]
FACO[Bit 0]
When set, add an 8 pF to Cg and Cd each.
When set, add an 4 pF to Cg and Cd each.
When set, add an 2 pF to Cg and Cd each.
When set, add an 1 pF to Cg and Cd each.
When set, add an 0.5 pF to Cg and Cd each.
When set, add an 0.25 pF to Cg and Cd each.
When set, add an 0.125 pF to Cg and Cd each.
When set, add an 0.0625 pF to Cg and Cd each.
14.5
Specific Register
Address
0x1505
Access Mode
R/W
Value At Reset
0x00
Nominal Value
Bit 7
RESERVED
Bit 6
RESERVED
Bit 5
RESERVED
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Blocked
Blocked
Blocked
Blocked
RESERVED
(for test modes) (for test modes) (for test modes) (for test modes)
14.6
VAG Selection
Address
0x1506
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Vc_vag [2:0]
RESERVED RESERVED RESERVED RESERVED RESERVED
VAG default voltage is 1.5V. And the VAG level can be programmed by software with following table.
Default
Vc_vag [2:0]
Bin
Hex
000
0
001
1
010
2
011
3
100
4
101
5
110
6
111
7
VAG (V)
1.50
1.57
1.67
1.80
2.00
2.33
1.50
1.50
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Publication Release Date: May, 2007
Revision 1.3