GS1532(2005) Ver la hoja de datos (PDF) - Gennum -> Semtech
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GS1532 Datasheet PDF : 52 Pages
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GS1532 Data Sheet
Table 1-1: Pin Descriptions (Continued)
Pin
Number
Name
Timing
35
V
Synchronous
with PCLK
36
H
Synchronous
with PCLK
37, 64
CORE_VDD
–
Type
Input
Input
Power
Description
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Used to indicate the portion of the video field / frame that is used for
vertical blanking when DETECT_TRS is set LOW. The device will set the
V bit in all outgoing TRS signals for the entire period that the V input signal
is HIGH (IOPROC_EN/DIS must also be HIGH).
The V signal should be set HIGH for the entire vertical blanking period and
should be set LOW for all lines outside of the vertical blanking interval.
The V signal is ignored when DETECT_TRS = HIGH.
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Used to indicate the portion of the video line containing active video data
when DETECT_TRS is set LOW. The device will set the H bit in all
outgoing TRS signals for the entire period that the H input signal is HIGH
(IOPROC_EN/DIS must also be HIGH).
H signal timing is configurable via the H_CONFIG bit of the
IOPROC_DISABLE register, accessible via the host interface.
Active Line Blanking (H_CONFIG = 0h)
The H signal should be set HIGH for the entire horizontal blanking period,
including the EAV and SAV TRS words, and LOW otherwise. This is the
default setting.
TRS Based Blanking (H_CONFIG = 1h)
The H signal should be set HIGH for the entire horizontal blanking period
as indicated by the H bit in the received TRS ID words, and LOW
otherwise.
Power supply connection for the digital core logic. Connect to +1.8V DC
digital.
21498 - 6 June 2005
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