Ir Remote Controller (Remc3); Overview; Input/Output Pins And External Connections; Output Pin - Epson S1C17M20 Technical Manual

17 IR Remote Controller (REMC3)

17.1 Overview

The REMC3 circuit generates infrared remote control output signals. This circuit can also be applicable to an EL
lamp drive circuit by adding a simple external circuit.
The features of the REMC3 are listed below.
• Outputs an infrared remote control signal.
• Includes a carrier generator.
• Flexible carrier signal generation and data pulse width modulation.
• Automatic data setting function for continuous data transmission.
• Output signal inverting function supporting various formats.
• EL lamp drive waveform can be generated for an application example.
Figure 17.1.1 shows the REMC3 configuration.
Table 17.1.1 REMC3 Channel Configuration of S1C17M20/M21/M22/M23/M24/M25
Item
Number of channels
Clock
generator
Interrupt
controller

17.2 Input/Output Pins and External Connections

17.2.1 Output Pin

Table 17.2.1.1 shows the REMC3 pin.
Pin name I/O*
REMO O
CLPLS O
S1C17M20/M21/M22/M23/M24/M25
TECHNICAL MANUAL (Rev. 1.0)
S1C17M20/M23
24-pin package 32-pin package
REMC3
CLK_REMC3
CLKSRC[1:0]
Carrier signal
CLKDIV[3:0]
DBRUN
MODEN
DBLENBSY
APLENBSY
REMCRST
DBCNT[15:0]
DBCNTRUN
DBIE
control circuit
APIE
Figure 17.1.1 REMC3 Configuration
Table 17.2.1.1 REMC3 Pin
Initial status*
O (L) IR remote controller transmit data output
O (L) IR remote controller clear pulse output
* Indicates the status when the pin is configured for the REMC3.
Seiko Epson Corporation
17 IR REMOTE CONTROLLER (REMC3)
S1C17M21/M24
1 transmitter channel
CRPER[7:0]
CRDTY[7:0]
generator
DBLEN[15:0]
APLEN[15:0]
Data signal
REMOINV
generator
OUTINVEN
Interrupt
Function
S1C17M22/M25
CARREN
PRESET
PRUN
BUFEN
REMO
CLPLS
TRMD
DBIF
APIF
17-1