JA58560 Datasheet, PDF (8/16 Pages) List of Unclassifed Manufacturers – Mask-ROM 8-Bit CMOS Micro-controller

JA58560
y Status (Status Register) : 03H
The content of Status register is listed in Table.
Bit Symbol
Description
Carry/borrow bit
ADDAR = 1, a carry occurred
0
C
= 0, a carry did not occur
SUBAR = 1, a borrow did not occur
= 0, a borrow occurred
Half carry/half borrow bit
ADDAR = 1, a carry from the 4th low order bit of the result occurred
1
DC
= 0, a carry from the 4th low order bit of the result did not occur
SUBAR = 1, a borrow from the 4th low order bit of the result did not occur
= 0, a borrow from the 4th low order bit of the result occurred
2
Z
Zero bit
= 1, the result of a logic operation is zero
= 0, the result of a logic operation is not zero
Power down flag bit:
3
PD
= 1, after power-up or by the CLRWDT instruction
= 0, by the SLEEP instruction
Time overflow flag bit:
4
TO
= 1, after power-up or by the CLRWDT or SLEEP instruction
= 0, a WDT time-overflow occurred
5~7
-
Reserved
y FSR (File select register pointer): 04H
Bit 0~4 are used to select up to 32 registers (address: 00h~1Fh). In JA58560, Bit 5~7 were fixed 1.
The indirect addressing mode shows as below:
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Data Memory Configuration
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