HD404849 Datasheet, PDF (18/125 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404849 Series
Item
Abbr.
Status After
Status After
Status After all
Cancellation of Stop Cancellation of Stop Other Types of
Modeby STOPC Input Mode by MCU Reset Reset
Carry flag
(CA)
Pre-stop-mode values
are not guaranteed;
values must be
initialized by program
Pre-MCU-reset values
are not guaranteed;
values must be
initialized by program
Accumulator
(A)
B register
(B)
W register
(W)
Y/SPX register
(Y/SPX)
Y/SPY register
(Y/SPY)
Serial data register (SRL, SRU)
A/D data register
(ADRU, L)
RAM
Pre-stop-mode values
are retained
RAM enable flag
(RAME)
1
0
0
Port mode register C (PMRC2) Pre-stop-mode values 0
0
bit 2
are retained
System clock select (SSR3)
register bit 3
18