- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
180
12.1.4. Ways to Use Digital Output
There are two types of digital output: straight output and ITU-REC output. Each piece of output data is output
at the rising edge of the clock output from the DCK pin (CXD3172AR pin 90). The DCK clock can be reversed
and its delay adjusted through parameter settings (see
summarizes the parameters used for digital output settings.
Table 12.1-2
Parameters for Setting Digital Output
Parameter
Description
DIFON CAT10_Byte14_bit7
DCK output ON/OFF control and digital signal processing operation
0[h]:OFF 1[h]:ON
RECOUT CAT10_Byte1_bit0
Digital output level switching
0[h]:Straight output 1[h]:ITU-REC output
DIFOUT CAT10_Byte1_bit2
Digital output format switching
0[h]:ITU-REC601-compliant output 1[h]:ITU-REC656-compliant output
YDSEL CAT1_Byte7_bit4
Port 8-15 pin setting switching
0[h]:Port driver 1[h]:YUV digital signal output
CDSEL CAT1_Byte7_bit5
Port 0-7 pin setting switching
0[h]:Port driver 1[h]:C digital signal output
S0IN CAT1_Byte7_bit6
S0 pin I/O switching (*1)
0[h]:DHD output 1[h]:VRI input
S1IN CAT1_Byte7_bit7
S1 pin I/O switching (*1)
0[h]:DVD output 1[h]:HRI input
S3SEL CAT8_Byte8_bit3-5
S3 pin I/O switching (*1)
0[h]:DHD 1[h]:DVD 2[h]:HD 3[h]:VD 4[h]:NRYBY (color judgment
signal) 5[h]:TEST signal 6[h]:FLD 7[h]:Analog shift FSC input
BLCKLV CAT10_Byte1_bit3-7
Variable black level setting (valid when RECOUT=1[h])
Variable range:0[h]-1F[h]
(*1) The settings for the individual parameters are controlled by firmware. For information on how to change
the settings, see 12.6 “Sync Signal Output Setting Method”.
Table 12.1-3
DCK Adjustment Parameters
Parameter
Description
DCKINV CAT10_Byte14_bit4
DCK output reversal
0[h]: Normal 1[h]: Reverse
DCKDL CAT10_Byte14_bit5-6
DCK output delay adjustment
0[h]:0ns 1[h]:5ns 2[h]:10ns 3[h]:15ns
DIFCKSEL CAT1_Byte4_bit6-7
DCK clock selector
0[h]:ECK/2 1[h]:ECK 2[h]:MCK/2 3[h]:MCK
* DIFCKSEL is controlled by firmware based on the MODESEL (CAT12_Byte1_bit0-3) setting. Note, however,
that it is only controlled during the initial operation, after which it is open to the user.