UPD17230 Datasheet, PDF (68/92 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

µPD17230, 17231, 17232, 17233, 17234, 17235, 17236
Figure 11-1. Register Files (1/2)
Column
Address
Row
Address
Bit 3
Bit 2
0
Bit 1
Bit 0
Bit 3
Bit 2
1
Bit 1
Bit 0
Bit 3
Bit 2
2
Bit 1
Bit 0
Bit 3
Bit 2
3
Bit 1
Bit 0
0
1
2
3
4
0 0 0 WDTRES 0
1 0 0 BTMCK 0
SP
0 0 0 BTMRES 0
1 SYSCK 0 0 0
0000
0000
0000
NRZBF 0 NRZ 0
TMEN 1
TMRES 0
TMCK1 0
TMCK0 0
Note On reset
5
6
7
P0EBPU3 0
P0EBPU2 0
P0EBPU1 0
P0EBPU0 0
P0BBIO3 0 P0EBIO3 0
P0BBIO2 0 P0EBIO2 0
P0BBIO1 0 P0EBIO1 0
P0BBIO0 0 P0EBIO0 0
P0DGIO 1
P0CGIO 1
00
00
Figure 11-2. Data Memory Configuration
Column address
0 1 2 3 4 5 6 7 8 9ABCDE F
0
DBF3 DBF2 DBF1 DBF0
1
2
3
4
5
6
7
DBF
P0E0-P0E3
AR3 AR2 AR1 AR0 WR BANK IXH IXM IXL RPH RPL PSW
P0D0-P0D3
P0C0-P0C3
P0B0-P0B3
P1A0
P0A0-P0A3
System register
68
Data Sheet U14360EJ1V0DS00