MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
PROGRAM ALGORITHM FLOW CHART
START
VDD = 4V,VPP = 4V
V
DD = 4V,VPP = 12.5V
ADRS = first location
X=0
WRITE PROGRAM-VERIFY
COMMAND
3516
DIN
WRITE PROGRAM
DATA
PROGRAM ONE PULSE
OF 0.2ms
X = X + 1
YES
X = 25?
NO
FAIL
VERIFY
BYTE?
PASS
VERIFY
BYTE?
PASS
WRITE PROGRAM
COMMAND
2516
FAIL
WRITE PROGRAM
DATA
DIN
PROGRAM PULSE OF
0.2Xms DURATION
LAST
ADRS?
NO
INC ADRS
YES
READ COMMAND
1516
VERIFY
ALL BYTE?
FAIL
DEVICE
FAILED
PASS
DEVICE
PASSED
MITSUBISHI
ELECTRIC
43