TC62D776CFG

2011-12-07

7

About the operation of each command

S0 command (Input of output ON/OFF data.)

Description

If SCK pulses High zero or one time while TRANS is High, it is interpreted as the S0 command, which

acts as follows.

Basic input pattern of S0 command

Input form of output ON/OFF data

MSB

LSB

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

15

OUT

14

OUT

13

OUT

12

OUT

11

OUT

10

OUT

9

OUT

8

OUT

2

OUT

Input in MSB first.

Output ON/OFF data setting

Input Data

Setting

1

Output turn on

0

Output turn off

Default after power-on

Data

Setting

0

Output turn off

Automatic Error Detection Mode

If output open/short detection is enabled, its result is automatically transferred from the Error Detection

Result register to the 16-bit Shift Register, which can be shifted out from the SOUT pin.

Output open/short detection can be enabled with the S3 command.

Open/short errors can be detected only for output channels that are enabled for at least 800 ns (Note 1) and

are configured to be turned on. For the disabled output channels, the detection result will be 1 (normal). If the

output channels stay on for no longer than 800 ns, the automatic error detection result will be invalid; in this

case, the detection results of all channels will be 1 (normal).

In the figure shown below, the outputs are enabled for over 800 ns during the Terr2 period, but the automatic

error detection result is invalid; thus, it should be kept in mind that the detection results will be 1 (normal) for

all channels.