GS1532 Data Sheet
Table 1-1: Pin Descriptions (Continued)
Pin
Number
29
Name
SDIN_TDI
Timing
Synchronous
with
SCLK_TCK
Type
Input
Description
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Serial Data In / Test Data Input
Host Mode (JTAG/HOST = LOW)
SDIN_TDI operates as the host interface serial input, SDIN, used to write
address and configuration information to the internal registers of the
device.
JTAG Test Mode (JTAG/HOST = HIGH)
SDIN_TDI operates as the JTAG test data input, TDI.
NOTE: If the host interface is not being used, tie this pin HIGH.
30
SCLK_TCK
Non
Synchronous
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Serial Data Clock / Test Clock.
Host Mode (JTAG/HOST = LOW)
SCLK_TCK operates as the host interface burst clock, SCLK. Command
and data read/write words are clocked into the device synchronously with
this clock.
JTAG Test Mode (JTAG/HOST = HIGH)
SCLK_TCK operates as the JTAG test clock, TCK.
NOTE: If the host interface is not being used, tie this pin HIGH.
32
BLANK
Synchronous
with PCLK
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Used to enable or disable input data blanking.
When set LOW, the luma and chroma input data is set to the appropriate
blanking levels. Horizontal and vertical ancillary spaces will also be set to
blanking levels.
When set HIGH, the luma and chroma input data pass through the device
unaltered.
33, 68
34
CORE_GND
F
–
Synchronous
with PCLK
Power
Input
Ground connection for the digital core logic. Connect to digital GND.
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Used to indicate the ODD / EVEN field of the video signal when
DETECT_TRS is set LOW. The device will set the F bit in all outgoing TRS
signals for the entire period that the F input signal is HIGH
(IOPROC_EN/DIS must also be HIGH).
The F signal should be set HIGH for the entire period of field 2 and should
be set LOW for all lines in field 1 and for all lines in progressive scan
systems.
The F signal is ignored when DETECT_TRS = HIGH.
21498 - 8
February 2007
9 of 51
GENNUM [ GENNUM CORPORATION ]
