GS2962 Datasheet, PDF (13/82 Pages) Gennum Corporation – Integrated Narrow-Bandwidth PLL

Table 1-1: Pin Descriptions (Continued)
Pin
Number
G7
Name
Timing
IOPROC_EN/DIS
Type
Input
G8
RESET
Input
H3
ANC_BLANK
Input
H4
LOCKED
H8
JTAG/HOST
Output
Input
J8
TCK
Input
Description
CONTROL SIGNAL INPUT.
Signal levels are LVCMOS/LVTTL compatible.
Used to enable or disable the I/O processing features.
When IOPROC_EN/DIS is HIGH, the I/O processing features of the
device are enabled. When IOPROC_EN/DIS is LOW, the I/O processing
features of the device are disabled.
Only applicable in SMPTE mode.
CONTROL SIGNAL INPUT
Signal levels are LVCMOS/LVTTL compatible.
Used to reset the internal operating conditions to default settings
and to reset the JTAG sequence.
Normal mode (JTAG/HOST = LOW).
When LOW, all functional blocks will be set to default conditions
and all input and output signals become high impedance.
When HIGH, normal operation of the device resumes.
JTAG test mode (JTAG/HOST = HIGH).
When LOW, all functional blocks will be set to default and the JTAG
test sequence will be reset.
When HIGH, normal operation of the JTAG test sequence resumes.
CONTROL SIGNAL INPUT.
Signal levels are LVCMOS / LVTTL compatible.
When ANC_BLANK is LOW, the Luma and Chroma input data is set
to the appropriate blanking levels during the H and V blanking
intervals.
When ANC_BLANK is HIGH, the blanking function is disabled.
Only applicable in SMPTE mode.
STATUS SIGNAL OUTPUT.
Signal levels are LVCMOS / LVTTL compatible.
PLL lock indication.
HIGH indicates PLL is locked.
LOW indicates PLL is not locked.
CONTROL SIGNAL INPUT.
Signal levels are LVCMOS / LVTTL compatible.
Used to select JTAG test mode or host interface mode.
When JTAG/HOST is HIGH, the host interface port is configured for
JTAG test.
When JTAG/HOST is LOW, normal operation of the host interface
port resumes and the separate JTAG pins become the JTAG port.
COMMUNICATION SIGNAL INPUT.
Signal levels are LVCMOS/LVTTL compatible.
JTAG Serial Data Clock Signal.
This pin is the JTAG clock when the JTAG/HOST pin is LOW.
GS2962 3G/HD/SD-SDI Serializer with Complete
SMPTE Video Support
Data Sheet
48005 - 7
October 2010
13 of 82