Datasheet

AD9979

Rev. C | Page 17 of 56

Table 10. CLPOB and PBLK Registers

Name Length Range Description

CLPOB0_TOG1 13 bits 0 to 8191 pixel location First CLPOB0 toggle position within the line for each V-sequence.

CLPOB0_TOG2 13 bits 0 to 8191 pixel location Second CLPOB0 toggle position within the line for each V-sequence.

CLPOB1_TOG1 13 bits 0 to 8191 pixel location First CLPOB1 toggle position within the line for each V-sequence.

CLPOB1_TOG2 13 bits 0 to 8191 pixel location Second CLPOB1 toggle position within the line for each V-sequence.

CLPOB_POL 9 bits High/low Starting polarity of CLPOB for each V-sequence[8:0] (in field registers).

CLPOB_PAT 9 bits 0 to 9 settings CLPOB pattern selection for each V-sequence[8:0] (in field registers).

CLPOBMASKSTARTx 13 bits 0 to 8191 pixel location CLPOB mask start position. Three values available (in field registers).

CLPOBMASKENDx 13 bits 0 to 8191 pixel location CLPOB mask end position. Three values available (in field registers).

PBLK0_TOG1 13 bits 0 to 8191 pixel location First PBLK0 toggle position within the line for each V-sequence.

PBLK0_TOG2 13 bits 0 to 8191 pixel location Second PBLK0 toggle position within the line for each V-sequence.

PBLK1_TOG1 13 bits 0 to 8191 pixel location First PBLK1 toggle position within the line for each V-sequence.

PBLK1_TOG2 13 bits 0 to 8191 pixel location Second PBLK1 toggle position within the line for each V-sequence.

PBLK_POL 9 bits High/low Starting polarity of PBLK for each V-sequence[8:0] (in field registers).

PBLK_PAT 9 bits 0 to 9 settings PBLK pattern selection for each V-sequence[8:0] (in field registers).

PBLKMASKSTARTx 13 bits 0 to 8191 pixel location PBLK mask start position. Three values available (in field registers).

PBLKMASKENDx 13 bits 0 to 8191 pixel location PBLK mask end position. Three values available (in field registers).

HBLK

BASIC HBLK PULSE IS GENERATED USING HBLKTOGE1 AND HBLKTOGE2 (HBLKALT_PATx = 0).

BLANK BLANK

HBLKTOGE1 HBLKTOGE2

5957-025

Figure 23. Typical Horizontal Blanking Pulse Placement (HBLKMODE = 0)

HBLK

H1/H3

H2/H4

THE POLARITY OF H1/H3 DURING BLANKING IS PROGRAMMABLE

(H2/H4 AND HL POLARITIES ARE SEPARATELY PROGRAMMABLE).

05957-026

Figure 24. HBLK Masking Control