THS8200/8210
‘ALL-FORMAT’ OVERSAMPLED COMPONENT VIDEO/PC GRAPHICS D/A SYSTEM WITH
THREE 11 BIT DAC’S, CGMS DATA INSERTION AND 525P MACROVISION
TM COPY
PROTECTION
SLES032—6/18/02 3:33 PM
POST OFFICE BOX 655303
DALLAS TEXAS 77265
67
Copyright 2001 Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data
and other specifications are design goals. Texas Instruments
reserves the right to change or discontinue these products
without notice.
csm_shift_rcr(7:0):
R/Cr shift value
{csm_shift_rcr 0x49(7:0)}
[01000000]
Value that B/Cb data will be shifted downwards.
Range: 0-255. Note: It is possible to shift the data so
much that a rollover condition occurs.
csm_mult_gy_on:
G/Y scaling on/off
{csm_gy_cntl_mult_msb 0x4A(7)}
[0]
0 : scaling for G/Y channel off
1 : scaling for G/Y channel on
csm_shift_gy_on:
G/Y shifting on/off
{csm_gy_cntl_mult_msb 0x4A(6)}
[0]
0 : shifting for G/Y channel off
1 : shifting for G/Y channel on
csm_gy_high_clip_on:G/Y high end clipping
on/off
{csm_gy_cntl_mult_msb 0x4A(5)}
[0]
0 : G/Y data clipping at high end off
1 : G/Y data clipping at high end on
csm_gy_low_clip_on: G/Y low end clipping
on/off
{csm_gy_cntl_mult_msb 0x4A(4)}
[0]
0 : G/Y data clipping at low end off
1 : G/Y data clipping at low end on
Numerical format of the CSM ‘mult’ registers:
The 11-bit value is binary weighted value in the range
0 – 1.999.
Thus: csm_mult_<gy,rcr,bcb>(10:0) = [(multiplier in
range 0..1.999) / 1.999 ] x 2047.
csm_mult_gy(10:0):
G/Y scaling value
{csm_gy_cntl_mult_msb 0x4A(2:0) &
csm_mult_gy_lsb 0x4C(7:0)}
[00000000000]
Multiply factor for G/Y channel in CSM. Range: 0-
1.999. Note: it is possible to scale the input so much
that a rollover occurs.
csm_mult_bcb(10:8): B/Cb scaling value
{csm_mult_bcb_rcr_msb 0x4B(6:4) &
csm_mult_bcb_lsb 0x4D(7:0)}
[00000000000]
Multiply factor for B/Cb channel in CSM. Range: 0-
1.999. Note: it is possible to scale the input so much
that a rollover occurs.
csm_mult_rcr(10:8):
R/Cr scaling value
{csm_mult_bcb_rcr_msb 0x4B(2:0) &
csm_mult_rcr_lsb 0x4E(7:0)}
[00000000000]
Multiply factor for R/Cr channel in CSM. Range: 0-
1.999. Note: it is possible to scale the input so much
that a rollover occurs.
csm_mult_rcr_on:
R/Cr scaling on/off
{csm_rcr_bcb_cntl 0x4F(7)}
[0]
0 : scaling for R/Cr channel off
1 : scaling for R/Cr channel on
csm_mult_bcb_on:
B/Cb scaling on/off
{csm_rcr_bcb_cntl 0x4F(6)}
[0]
0 : scaling for B/Cb channel off
1 : scaling for B/Cb channel on
csm_shift_rcr_on:
R/Cr shifting on/off
{csm_rcr_bcb_cntl 0x4F(5)}
[0]
0 : shifting for R/Cr channel off
1 : shifting for R/Cr channel on
csm_shift_bcb_on:
B/Cb shifting on/off
{csm_rcr_bcb_cntl 0x4F(4)}
[0]
0 : shifting for B/Cb channel off
1 : shifting for B/Cb channel on
csm_rcr_high_clip_on:R/Cr high end clipping
on/off
{csm_rcr_bcb_cntl 0x4F(3)}
[0]
0 : R/Cr data clipping at high end off
1 : R/Cr data clipping at high end on
csm_rcr_low_clip_on: R/Cr low end clipping
on/off
{csm_rcr_bcb_cntl 0x4F(2)}
[0]
0 : R/Cr data clipping at low end off