GS9060 Data Sheet
Table 1-1: Pin Descriptions (Continued)
Pin
Name
Timing
Type
Description
Number
13
IOPROC_EN/DIS
Non
Input
CONTROL SIGNAL INPUT
Synchronous
Signal levels are LVCMOS/LVTTL compatible.
Used to enable or disable I/O processing features.
When set HIGH, the following I/O processing features of the
device are enabled:
•
•
•
•
EDH CRC Error Correction
ANC Data Checksum Correction
TRS Error Correction
Illegal Code Remapping
To enable a subset of these features, keep IOPROC_EN/DIS
HIGH and disable the individual feature(s) in the
IOPROC_DISABLE register accesible via the host interface.
When set LOW, the I/O processing features of the device are
disabled, regardless of whether the features are enabled in the
IOPROC_DISABLE register.
14
CD2
Non
Input
STATUS SIGNAL INPUT
Synchronous
Signal levels are LVCMOS/LVTTL compatible.
Used to indicate the presence of a serial digital input signal.
Normally generated by a Gennum automatic cable equalizer.
When LOW, the serial digital input signal received at the DDI2
and DDI2 pins is considered valid.
When HIGH, the associated serial digital input signal is
considered to be invalid. In this case, the LOCKED signal is set
LOW and all parallel outputs are muted.
15,17
16
DDI_2, DDI_2
TERM2
Analog
Analog
Input
Input
Differential input pair for serial digital input 2.
Termination for serial digital input 2. AC couple to
PDBUFF_GND.
18
SMPTE_BYPASS
Non
Input
CONTROL SIGNAL INPUT
Synchronous
Signal levels are LVCMOS/LVTTL compatible.
When set HIGH in conjunction with DVB_ASI = LOW, the device
will be configured to operate in SMPTE mode. All I/O processing
features may be enabled in this mode.
When set LOW, the device will not support the descrambling,
decoding or word alignment of received SMPTE data. No I/O
processing features will be available.
19
20
RSET
Analog
–
Input
Used to set the serial digital loop-through output signal
amplitude. Connect to CD_VDD through 281Ω +/- 1% for
800mVp-p single-ended output swing.
CD_VDD
Power
Power supply connection for the serial digital cable driver.
Connect to +1.8V DC analog.
22208 - 8 January 2007
7 of 61
GENNUM [ GENNUM CORPORATION ]
