2004 Mar 04 45
Philips Semiconductors Product specification
Digital video encoder SAA7104E; SAA7105E
Table 89 Subaddress D0H
Table 90 Layout of the data bytes in the line count array
Table 91 Subaddress D1H
Table 92 Layout of the data bytes in the line type array
Table 93 Subaddress D2H
DATA BYTE DESCRIPTION
HLCA RAM start address for the HD sync line count array; the byte following subaddress D0 points to the
first cell to be loaded with the next transmitted byte; succeeding cells are loaded by auto-incrementing
until stop condition. Each line count array entry consists of 2 bytes; see Table 90. The array has
15 entries.
HLC HD line counter. The system will repeat the pattern described in ‘HLT’ HLC times and then start with
the next entry in line count array.
HLT HD line type pointer. If not 0, the value points into the line type array, index HLT − 1 with the
description of the current line. 0 means the entry is not used.
BYTE DESCRIPTION
0 HLC7 HLC6 HLC5 HLC4 HLC3 HLC2 HLC1 HLC0
1 HLT3 HLT2 HLT1 HLT0 0 0 HLC9 HLC8
DATA BYTE DESCRIPTION
HLTA RAM start address for the HD sync line type array; the byte following subaddress D1 points to the first
cell to be loaded with the next transmitted byte; succeeding cells are loaded by auto-incrementing
until stop condition. Each line type array entry consists of 4 bytes; see Table 92. The array has
15 entries.
HLP HD line type; if not 0, the value points into the line pattern array. The index used is HLP − 1. It consists
of value-duration pairs. Each entry consists of 8 pointers, used from index 0 to 7. The value 0 means
that the entry is not used.
BYTE DESCRIPTION
0 0 HLP12 HLP11 HLP10 0 HLP02 HLP01 HLP00
1 0 HLP32 HLP31 HLP30 0 HLP22 HLP21 HLP20
2 0 HLP52 HLP51 HLP50 0 HLP42 HLP41 HLP40
3 0 HLP72 HLP71 HLP70 0 HLP62 HLP61 HLP60
DATA BYTE DESCRIPTION
HLPA RAM start address for the HD sync line pattern array; the byte following subaddress D2 points to the
first cell to be loaded with the next transmitted byte; succeeding cells are loaded by auto-incrementing
until stop condition. Each line pattern array entry consists of 4 value-duration pairs occupying 2 bytes;
see Table 94. The array has 7 entries.
HPD HD pattern duration. The value defines the time in pixel clocks (HPD + 1) the corresponding value
HPV is added to the HD output signal. If 0, this entry will be skipped.
HPV HD pattern value pointer. This gives the index in the HD value array containing the level to be inserted
into the HD output path. If the MSB of HPV is logic 1, the value will only be inserted into the Y/GREEN
channel of the HD data path, the other channels remain unchanged.
