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15.6 Application Example: Driving EL Lamp
The REMC2 can be used to simply drive an EL lamp as an application example. Figures 15.6.1 and 15.6.2 show an
example of an EL lamp drive circuit and an example of the drive waveform generated, respectively. For details of
settings and an example of components, refer to the Application Note provided separately.
REMO
CLPLS
The REMO and CLPLS signals are output from the respective pins while the REMDBCTL.PRUN bit = 1. The dif-
ference between the setting values of the REMDBLEN.DBLEN[15:0] bits and REMAPLEN.APLEN[15:0] bits
becomes the CLPLS pulse width (high period).
15.7 Control Registers
REMC2 Clock Control Register
Register name
Bit
REMCLK
15–9 –
8
7–4 CLKDIV[3:0]
3–2 –
1–0 CLKSRC[1:0]
Bits 15–9 Reserved
Bit 8
DBRUN
This bit sets whether the REMC2 operating clock is supplied in DEBUG mode or not.
1 (R/W): Clock supplied in DEBUG mode
0 (R/W): No clock supplied in DEBUG mode
Bits 7–4
CLKDIV[3:0]
These bits select the division ratio of the REMC2 operating clock.
Bits 3–2
Reserved
S1C17M12/M13 TECHNICAL MANUAL
(Rev. 1.2)
V
DD2
S1C17
REMO
REMC2
CLPLS
V
SS
Figure 15.6.1 Example of EL Lamp Drive Circuit
REMDBLEN.DBLEN[15:0]
REMAPLEN.APLEN[15:0]
Writing 1 to REMDBCTL.PRUN
Figure 15.6.2 Example of Generated Drive Waveform
Bit name
Initial
0x00
DBRUN
0
0x0
0x0
0x0
Seiko Epson Corporation
15 IR REMOTE CONTROLLER (REMC2)
L
1
V
= 50–200 V
EL
R
1
D
1
Q
1
R
3
R
2
Q
2
External components
Reset
R/W
–
R
–
H0
R/W
H0
R/W
–
R
H0
R/W
+
EL lamp
REMCARR.CRPER[7:0]
REMCARR.CRDTY[7:0]
Remarks
15-7
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