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19 IR Remote Controller (REMC2)
19.1 Overview
The REMC2 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 REMC2 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 19.1.1 shows the REMC2 configuration.
Item
Number of channels
Clock
generator
CPU
19.2 Input/Output Pins and External Connections
19.2.1 Output Pin
Table 19.2.1.1 shows the REMC2 pin.
Pin name
I/O*
REMO
O
CLPLS
O
S1C31W74 TECHNICAL MANUAL
(Rev. 1.1)
Table 19.1.1 REMC2 Channel Configuration of S1C31W74
REMC2
CLK_REMC2
CLKSRC[1:0]
CLKDIV[3:0]
DBRUN
MODEN
DBLENBSY
APLENBSY
REMCRST
DBCNTRUN
DBIE
APIE
Figure 19.1.1 REMC2 Configuration
Table 19.2.1.1 REMC2 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 REMC2.
Seiko Epson Corporation
19 IR REMOTE CONTROLLER (REMC2)
S1C31W74
1 transmitter channel
Carrier signal
generator
Data signal
generator
DBCNT[15:0]
Interrupt
control circuit
Function
CRPER[7:0]
CRDTY[7:0]
CARREN
PRESET
PRUN
DBLEN[15:0]
APLEN[15:0]
BUFEN
REMOINV
REMO
CLPLS
TRMD
DBIF
APIF
19-1
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