NEC 78K0S/KB1+ User Manual page 37
8-bit single-chip microcontrollers
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Also See for 78K0S/KB1+:
- Application note (49 pages) ,
- Application note (38 pages) ,
- Application note (37 pages)
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Address
Special Function Register (SFR) Name
FF00H
Port register 0
FF02H
Port register 2
FF03H
Port register 3
FF04H
Port register 4
FF0CH
Port register 12
FF0DH
Port register 13
FF0EH
8-bit timer H compare register 01
FF0FH
8-bit timer H compare register 11
FF10H
16-bit multiplication result storage register L
FF11H
16-bit multiplication result storage register H
FF12H
16-bit timer counter 00
FF13H
FF14H
16-bit timer capture/compare register 000
FF15H
FF16H
16-bit timer capture/compare register 010
FF17H
FF18H
10-bit A/D conversion result register
FF19H
FF1AH
8-bit A/D conversion result register
FF20H
Port mode register 0
FF22H
Port mode register 2
FF23H
Port mode register 3
FF24H
Port mode register 4
FF2CH
Port mode register 12
FF30H
Pull-up resistor option register 0
FF32H
Pull-up resistor option register 2
FF33H
Pull-up resistor option register 3
FF34H
Pull-up resistor option register 4
FF3CH
Pull-up resistor option register 12
FF48H
Watchdog timer mode register
FF49H
Watchdog timer enable register
FF50H
Low-voltage detect register
FF51H
Low-voltage detection level select register
FF54H
Reset control flag register
FF58H
Low-speed internal oscillation mode register
Notes 1. Only P34 is an input-only port.
2. A 16-bit access is possible only by the short direct addressing.
3. Retained only after a reset by LVI.
4. Varies depending on the reset cause.
CHAPTER 3 CPU ARCHITECTURE
Table 3-3. Special Function Registers (1/3)
Symbol
P0
P2
P3
P4
P12
P13
CMP01
CMP11
MUL0L
MUL0
MUL0H
TM00
CR000
CR010
ADCR
ADCRH
PM0
PM2
PM3
PM4
PM12
PU0
PU2
PU3
PU4
PU12
WDTM
WDTE
LVIM
LVIS
RESF
LSRCM
User's Manual U17446EJ3V1UD
R/W
Number of Bits Manipulated
Simultaneously
1 Bit
8 Bits
√
√
R/W
Note 1
√
√
√
√
√
√
√
√
√
√
−
√
R/W
−
√
−
√
R
−
√
−
−
−
−
R/W
−
−
−
−
R
−
√
√
√
R/W
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
−
√
−
√
√
√
−
√
−
√
R
√
√
R/W
After Reset
16 Bits
−
00H
−
−
−
−
−
−
−
√
Undefined
√
Note 2
0000H
√
Note 2
0000H
√
Note 2
0000H
√
Note 2
Undefined
−
−
FFH
−
−
−
−
−
00H
−
−
−
−
−
67H
−
9AH
−
Note 3
00H
−
−
Note 4
00H
−
00H
37
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