PD17012_15 Datasheet, PDF (249/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
Example of table data for binary search
0000B
0001B
0010B
0011B
0100B
0101B
0110B
0111B
1000B
1001B
1010B
1011B
1100B
1101B
1110B
1111B
Table Data
(Key Source Data)
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
(2) Program example
RA
MEM 0.1AH
RB
MEM 0.1BH
RC
MEM 0.1CH
KEY_IN MEM 0.73H
KSDATA:
;
;
;
;
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
DW
KEY_LOAD:
CLR1
KKKKKKKKKKKKKKKK
SSSSSSSSSSSSSSSS
1111119876543210
543210
0000000011111111B
0000000011110000B
0000000000001100B
0000000000110000B
0000000000000010B
0000000000001000B
0000000000100000B
0000000010000000B
0000000000000001B
0000000000000010B
0000000000000100B
0000000000001000B
0000000000010000B
0000000000100000B
0000000001000000B
0000000010000000B
PYASEL
SET2 LCDEN, KSEN
; General-purpose work register
; General-purpose work register
; General-purpose work register
; P0D port register
; RA = 0
; RA = 1
; RA = 2
; RA = 3
; RA = 4
; RA = 5
; RA = 6
; RA = 7
; RA = 8
; RA = 9
; RA = 10
; RA = 11
; RA = 12
; RA = 13
; RA = 14
; RA = 15
; Sets LCD15/KS15/PYA15 to LCD8/KS8/PYA8 pins
; to LCD segment
; LCD segment and key source signal output
Data Sheet U10101EJ4V0DS
247