TC62D776CFNAG

2011-12-14

9

S1 command (Output open/short detection function manual operation is executed.)

Description

If SCK pulses High five or six times while TRANS is High, it is interpreted as the S1 command, which acts as

follows.

If output open/short detection is enabled, a current of approximately 60 μA is forced to flow to all the outputs

Its result is immediately transferred to the 16-bit Shift Register, which can be shifted out from the SOUT pin.

The format used to transfer the detection result is the same as for the S0 command.

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

Note: The S1 command should be loaded when the outputs are off. The S1 command is not executed if it is

is disabled.

Basic input pattern of S1 command

After the S1 command is loaded, the first SCK pulse (marked X above) is used to transfer an error detection

result to the 16-bit Shift Register. At this time, the TC62D776CFNAG ignores the SIN input.