CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Ports)

R03HIZ register

 

 

 

 

 

 

 

 

 

 

Fix at "0"

 

R03 register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fix at "1"

 

FOUTE register "0"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"1"

 

 

 

 

 

 

 

 

 

 

"0"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FOUT output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 4.5.4.2 Output waveform of FOUT signal

•XTMUTE (R10)

The R10 terminal can output an XTMUTE signal.

The XTMUTE signal is the transmitter mute signal used for the telephone function.

To output the XTMUTE signal, set the R10 port as the XTMUTE output by writing "1" to the CTMO register and fix the R10 register at "1" and the R10HIZ register at "0". Use the CTMUTE register for controlling the XTMUTE signal output.

Refer to Section 4.14, "Telephone Function" for details of the signal and controlling method.

•XRMUTE (R11)

The R11 terminal can output an XRMUTE signal.

The XRMUTE signal is the receiver mute signal used for the telephone function.

To output the XRMUTE signal, set the R11 port as the XRMUTE output by writing "1" to the CRMO register and fix the R11 register at "1" and the R11HIZ register at "0". Use the CRMUTE register for controlling the XRMUTE signal output.

Refer to Section 4.14, "Telephone Function" for details of the signal and controlling method.

•HDO (R12)

The R12 terminal can output a HDO signal.

The HDO signal is the hold line signal used for the telephone function.

To output the HDO signal, set the R12 port as the HDO output by writing "1" to the CHDO register and fix the R12 register at "1" and the R12HIZ register at "0". Use the HOLD register for controlling the HDO signal output.

Refer to Section 4.14, "Telephone Function" for details of the signal and controlling method.

•HFO (R13)

The R13 terminal can output a HFO signal.

The HFO signal is the hand free signal used for the telephone function.

To output the HFO signal, set the R13 port as the HFO output by writing "1" to the CHFO register and fix the R13 register at "1" and the R13HIZ register at "0". Use the HF register for controlling the HFO signal output.

Refer to Section 4.14, "Telephone Function" for details of the signal and controlling method.

36

EPSON

S1C63558 TECHNICAL MANUAL