FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
48
COPYRIGHT
©
© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
6.2.37 Misc. Bit Reg. 80, WSS Clock (81-82), WSS Data F1(83-85)
Miscellaneous Bit Register 80
7
6
5
4
3
2
1
0
0
WSS_F1EN
WSSF0_EN
WSS_TYPE
WSS_CLKBY
WSS_EDGE1
WSS_EDGE0
0
WSS Clock (81)
7
6
5
4
3
2
1
0
WSS_CLK11
WSS_CLK10
WSS_CLK9
WSS_CLK8
WSS_CLK7
WSS_CLK6
WSS_CLK5
WSS_CLK4
WSS Clock (82)
7
6
5
4
3
2
1
0
0
0
0
0
WSS_CLK3
WSS_CLK2
WSS_CLK1
WSS_CLK0
WSS Data Field 1 (83)
7
6
5
4
3
2
1
0
WSS_DATF019
WSS_DATF018
WSS_DATF017
WSS_DATF016
WSS_DATF015
WSS_DATF014
WSS_DATF013
WSS_DATF012
WSS Data Field 1 (84)
7
6
5
4
3
2
1
0
WSS_DATF011
WSS_DATF010
WSS_DATF09
WSS_DATF08
WSS_DATF07
WSS_DATF06
WSS_DATF05
WSS_DATF04
WSS Data Field 1 (85)
7
6
5
4
3
2
1
0
0
0
0
0
WSS_DATF03
WSS_DATF02
WSS_DATF01
WSS_DATF00
Reg
Bit#
Bit Name
Description
80
2-1
WSS_EDGE1-0
WSS Edge Rate Control. Edge rates are proportional to the
frequency of the WSS clock, but can also be scaled by the
WSS_EDGE parameter. Higher numbers indicate faster rise
and fall times on the WSS pulses.
80
3
WSS_CLKBY
WSS Clock Bypass. Typically this is set=1 in NTSC and 0 in
PAL. =1 Causes the chroma clock to be used as the WSS
clock, =0 forces the local 12-bit WSS clock to be used.
80
4
WSS_TYPE
WSS Type. 1=PAL, ITU-R BT.1119-2, 0=NTSC, EIAJ CPR-
1204
80
5
WSSF0_EN
WSS Field 0 Enable. Enables WSS signal in Field 0.
80
6
WSSF1_EN
WSS Field 1 Enable. Enables WSS signal in Field 1.
81, 82
7-0, 3-0
WSS_CLK11-0
WSS Clock Frequency. Calculated from:
WSS Clock Frequency / Encoder Clock Frequency.
83,84,85
7-0,7-0,3-0
WSS_DATAF119-0
WSS Data for Field 1. A waveform only appears when
WSSF1_EN=1.
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