HD404369 Datasheet, PDF (19/115 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
Item
Carry flag
Accumulator
B register
W register
X/SPX register
Y/SPY register
Serial data register
RAM
RAM enable flag
Port mode register B
bit 3
System clock select
register 1 bit 3
Abbr.
Status After Cancellation of Stop Status After all Other Types of
Mode by STOPC Input
Reset
(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
(A)
(B)
(W)
(X/SPX)
(Y/SPY)
(SRL, SRU)
Pre-stop-mode values are retained
(RAME)
1
0
(PMRB3) Pre-stop-mode values are retained 0
(SSR13)
Table 2 Vector Addresses and Interrupt Priorities
Reset/Interrupt
Priority
Vector Address
RESET, STOPC*
—
$0000
INT₀
INT₁
Timer A
1
$0002
2
$0004
3
$0006
Timer B
4
$0008
Timer C
5
$000A
A/D
6
$000C
Serial
7
$000E
Note: * The STOPC interrupt request is valid only in stop mode.
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