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18.6 Application Example: Driving EL Lamp
The REMC3 can be used to simply drive an EL lamp as an application example. Figures 18.6.1 and 18.6.2 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 REMC3DBCTL.PRUN bit = 1. The
difference between the setting values of the REMC3DBLEN.DBLEN[15:0] bits and REMC3APLEN.APLEN[15:0]
bits becomes the CLPLS pulse width (high period).
18.7 Control Registers
REMC3 Clock Control Register
Register name
Bit
REMC3CLK
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 REMC3 operating clock is supplied during debugging or not.
1 (R/W): Clock supplied during debugging
0 (R/W): No clock supplied during debugging
Bits 7–4
CLKDIV[3:0]
These bits select the division ratio of the REMC3 operating clock.
Bits 3–2
Reserved
S1C31W65 TECHNICAL MANUAL
(Rev. 1.1)
V
DD
S1C31
REMO
REMC3
CLPLS
V
SS
Figure 18.6.1 Example of EL Lamp Drive Circuit
REMC3DBLEN.DBLEN[15:0]
REMC3APLEN.APLEN[15:0]
Writing 1 to REMC3DBCTL.PRUN
Figure 18.6.2 Example of Generated Drive Waveform
Bit name
Initial
0x00
DBRUN
0
0x0
0x0
0x0
Seiko Epson Corporation
18 IR REMOTE CONTROLLER (REMC3)
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
REMC3CARR.CRPER[7:0]
REMC3CARR.CRDTY[7:0]
Remarks
18-7
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