GS9001 データシートの表示（PDF） - Gennum -> Semtech

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GS9001

EDH Coprocessor

Gennum -> Semtech 

GS9001 PIN DESCRIPTIONS

PIN NO. SYMBOL TYPE

DESCRIPTION

1-10

DIN[9..0]

I

Parallel digital video data inputs

11

CLK

I

Parallel clock input.

12

R/T

I

Receive or Transmit mode select. High - CRC extraction, recalculation, comparison, error

indication, re-insertion. Low - CRC calculation, insertion, clears error flags

13

FIELD/STD

I

Field or Standard indication select. High - Field signals on F0, F1, F2. Low - Standard

indication on F0, F1,F2. (Refer to Table 1)

14,15 S0, S1

I

Error flag select inputs. Select type of error flag to output on FL0, FL1. (Refer to Table 2)

16

D 19,20

E 21

ND S 22

23

MME SIGN 24-33

34

ECO DE 35

NOFTORR NEW 36

RSTN

I

Master Reset. Active low input, which provides option to initialise internal circuitry. The

GS9001 contains power on reset circuitry that automatically initialises all internal

states including the I2C Interface.

A0,A1

I

Device address select pins for I2C interface bus. (Refer to Table 3)

SCL

I

Serial Clock for I2C Interface bus. SCL and SDA must be connected to GND if there is no

I2C interface connected to the device.

SDA

I/O Serial Data for I2C Interface bus.

INTERRUPT O

Programmable interrupt for error flag indication. Active low, open drain output. Interrupt

can be made sensitive to specific or all error flags (described in I2C WRITE format

section). Default is sensitive to all error flags. This output stays active until a word is read

from the device.

DOUT[0..9] O

Parallel digital video data outputs

NO TRS

O

Indicates presence of invalid input data, containing no timing reference signal (TRS).

Active high output which signals absence of seven consecutive valid TRSs in the

incoming data. Returns to low state after seven consecutive valid TRSs occur. A valid

input CLK must be present for this to operate.

ANC DATA O

Ancillary data presence indication. Active high output, indicates data presence from

ANC data header word to checksum word. Can be programmed through the I2C

interface to also indicate presence of TRS-ID (3FF,000,000) blocks. In this mode, output

stays high for 5 words during composite video TRS-ID and 4 words during component

EAV, SAV. In stand alone operation mode without I2C Interface, this feature can be

forced on ANC DATA pin by selecting address 0,1 on A1,A0 pins. (NOTE: SCL and SDA

must be connected to GND when I2C Interface is not used)

HSYNC

O

Horizontal sync indication. Active high, extends from EAV to SAV for component video,

indicates TRS-ID location for composite video.

37

V BLANK

O

Vertical blanking interval indication. Active high during this period.

40-42 F0/HD1

O

Field or standard indication pins. Field signals output when FIELD/STD pin is high, Video

F1/D1_D2,

standard when FIELD/STD is low.

F2/NTSC_PAL

43,44 FL1,FL0

O

Error Flag Status. Active high outputs programmed via S0, S1 to indicate various

transmission and hardware related error flags. Output flags stay active for one field.

17,39

VDD

18,38

VSS

P

Power Supply. Most positive power supply connection. (+5V)

P

Power Supply. Most negative power supply connection. (GND)

521 - 38 - 04

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