µPD6124A, 6600A

11

11.5

S-OUT PIN

By going low whenever the carrier frequency is output from the REM pin, the S-OUT pin indicates that communication

is in progress.

The S-OUT pin is CMOS output.

The S-OUT pin goes high on reset.

11.6

the LSI. In this state, if the rotate-left accumulator instruction (RL A) is executed, the data on the S-IN pin is copied

to the LSB of the accumulator.

If the control register is released from serial input mode, the S-IN pin goes into a high-impedance state, but no through

current flows internally.

When the RL A instruction is executed, the MSB is copied to the LSB.

At reset (all cleared), the S-IN pin goes into a high-impedance state.

Caution

The

µPD6123 is not provided with an S-IN pin.

Figure 11-3. Configuration of the S-IN Pin

CY

Control register

S-IN