18 IR REMOTE CONTROLLER (REMC3)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
18-7
(Rev. 2.00)
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.
R
1
R
3
+
Q
1
Q
2
L
1
D
1
V
EL
= 50–200 V
V
DD
REMO
EL lamp
External components
V
SS
S1C31
R
2
REMC3
CLPLS
Figure 18.6.1 Example of EL Lamp Drive Circuit
Writing 1 to REMC3DBCTL.PRUN
REMO
CLPLS
REMC3APLEN.APLEN[15:0]
REMC3DBLEN.DBLEN[15:0]
REMC3CARR.CRPER[7:0]
REMC3CARR.CRDTY[7:0]
Figure 18.6.2 Example of Generated Drive Waveform
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
Bit name
Initial
Reset
R/W
Remarks
REMC3CLK
15–9 –
0x00
–
R
–
8
DBRUN
0
H0
R/W
7–4 CLKDIV[3:0]
0x0
H0
R/W
3–2 –
0x0
–
R
1–0 CLKSRC[1:0]
0x0
H0
R/W
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