HD404369 Datasheet, PDF (29/117 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
Table 18 Operations in Low-Power Dissipation Modes
Function
Stop Mode
CPU
Reset
RAM
Retained
Timer A
Reset
Timer B
Reset
Timer C
Reset
Serial
Reset
A/D
Reset
I/O
Reset
Note: OP implies in operation
Watch Mode
Retained
Retained
OP
Stopped
Stopped
Stopped
Stopped
Retained
Standby Mode
Retained
Retained
OP
OP
OP
OP
OP
Retained
Subactive Mode
OP
OP
OP
OP
OP
OP
Stopped
OP
Table 19 I/O Status in Low-Power Dissipation Modes
RA₁
D₀–D₁₃, R0–R9
Output
Standby Mode,
Watch mode
—
Retained or output of
peripheral functions
Stop Mode
—
High impedance
Input
Active Mode,
Subactive mode
Input enabled
Input enabled
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