GS2961 Datasheet, PDF (74/104 Pages) Gennum Corporation – 3Gb/s, HD, SD SDI Receiver, with Integrated Adaptive Cable Equalizer complete with SMPTE Video Processing

Application Layer
Read Pointer
Bank A
0 ANCDATA
ANC DATA
ANC DATA
ANC DATA
ANC DATA
ANC DATA
ANC DATA
ANC DATA
ANC DATA
Internal Write
800h Pointer
Bank B
0
800h
1023
BFFh
1023
BFFh
ANC_DATA_SWITCH = HIGH
Figure 4-31: Ancillary Data Extraction - Step B
To read the new data, toggle the ANC_DATA_SWITCH bit LOW. The old data in Bank A
is cleared to zero and extraction continues in Bank B (see Figure 4-32: Ancillary Data
Extraction - Step C).
GS2961 3Gb/s, HD, SD SDI Receiver, with Integrated
Adaptive Cable Equalizer
Data Sheet
48004 - 2
November 2009
74 of 104