sh66k31c SinoWealth Micro-Electronics Corp. Ltd, sh66k31c Datasheet - Page 15
sh66k31c
Manufacturer Part Number
sh66k31c
Description
Mask 4-bit Micro-controller
Manufacturer
SinoWealth Micro-Electronics Corp. Ltd
Datasheet
1.SH66K31C.pdf
(27 pages)
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9. Remote Control Synthesizer
The device has a built-in carrier synthesizer for infrared or RF remote control circuits.
System Register ($0D):
System Register ($13):
The functional block diagram is show as below:
Address
Address
$0D
$13
PULLEN
Bit3
Bit3
X
X
X
X
X
X
-
-
-
CPS
Bit2
Bit2
3.64MHz
455kHz
X
X
X
X
-
-
-
0
1
fx/12, 1/2 duty
fx/12, 1/3duty
fx/8, 1/2 duty
Bit1
Bit1
CF1
fx
X
X
-
-
-
0
0
1
1
/8
Remote Control Functional Block Diagram
REMO
MUX
CPS
Bit0
Bit0
CF0
Carrier Synthesizer
0
1
X
X
0
1
0
1
Remote Carrier Duty
fx
/8
No Carrier
R/W
R/W
R/W
R/W
R/W
/12
W
W
W
W
W
W
W
1/2 duty
1/2 duty
1/3 duty
15
Bit0: REM output data.
REM output data disable
REM output data enable
Bit1-0: Carrier frequency control
Bit2: Carrier OSC prescaler
Bit3: Port pull-high resistor control
f
f
No carrier (default)
f
f
f
X
X
X
X
X
/8, 1/2 duty
/12, 1/3 duty
/12, 1/2 duty
= f
= f
MUX
CF1
CF0
OSC
OSC
/8
(default)
REMO
Remarks
Remarks
REM
SH66K31C
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