LC-52XL1E (serv.man5). Major IC Informations - Sharp TV Service Manual (repair manual). Page 32

LC-46XL1E/RU, LC-52XL1E/RU

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PROM

2

DATA

O

The DATA output signal transfers data selially out of the serial configuration device to the FPGA during 
read/configuration operation.
During a read/configuration operations, the serial configuration device is enabled by pulling nCS low.
The DATA signal transitions on the falling edge of DCLK.

5

ASDI

I

The AS data input signal is used to transfer data serially into the serial configuration device.
It receives the data that should be programmed into the serial configuration device.
Data is latched in the rising edge of DCLK.

1

nCS

I

The active low chip select input signal toggles at the beginning and end of a valid instruction.
When this signal is high, the device is deselected and the DATA pin is tri_stated. 
When this signal is low, it enables the device and puts the device in an active mode. 
After power up,the serial configuration device requires a falling edge on the nCS signal before begin-
ning any operation.

6

DCLK

I

DCLK is provided by the FPGA. 
This signal provides the timing of the serial interface. 
The data presented on ASDI is latched to the serial configuration device, at the rising edge of DCLK.
Data on the DATA pin changes after the falling edge of DCLK and is latched into the FPGA on the 
rising edge.

3, 7, 8

VCC

—

Power pins connect to 3.3V.

4

GND

—

Ground pin.