POWER-DOWN
KS57C2308/P2308/C2316/P2316
8-2
Table 8-1. Hardware Operation During Power-Down Modes
Mode
Main Stop
Sub Stop
Main/Sub Stop
Idle
System clock
Main clock (fx)
Sub clock (fxt)
Main clock (fx)
(1)
Main (fx) or sub clock
(fxt)
Instruction
STOP
Setting SCMOD.2 to
“1”
STOP
IDLE
Clock oscillator
Main clock oscillation
stops
Sub clock oscillation
stops
Main clock oscillation
stops
Only CPU clock
stops.
(2)
Basic timer
Basic timer stops.
Basic timer stops.
Basic timer stops.
Basic timer operates.
Serial I/O
interface
operates only if
external
SCK
is
selected as serial
clock
operates only if
external
SCK
is
selected as serial
clock
operates only if
external
SCK
is
selected as serial
clock
operates only if a
clock other than the
CPU clock is selected
as the serial clock.
Timer/counter 0
Operates only if
TCL0 is selected as
counter clock.
Operates only if
TCL0 is selected as
counter clock.
Operates only if
TCL0 is selected as
counter clock.
Timer/counter 0
operates.
Watch timer
Operates only if sub
clock (fxt) is selected
as counter clock.
Watch timer stops.
Watch timer stops.
Watch timer
operates.
LCD controller
Operates only if sub
clock (fxt) is selected
as LCD clock,
LCDCK.
LCD controller stops.
LCD controller stops.
LCD controller
operates.
External
interrupts
INT1 and INT2 are
acknowledged; INT0
is not serviced.
INT0, INT1, and INT2
is not serviced.
INT1 and INT2 are
acknowledged; INT0
is not serviced.
INT1 and INT2 are
acknowledged; INT0
is not serviced.
CPU
All CPU operations are disabled.
Mode release
signal
Interrupt request
signals (except INT0)
pre-enabled by IEx or
RESET
input.
Only
RESET
input
Interrupt request signals (except INT0)
pre-enabled by IEx or
RESET
input.
NOTES:
1.
Sub clock stops by setting SCMOD.2 to “1”.
2.
Main and sub clock oscillation continues.
Summary of Contents for KS57C2308
Page 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Page 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Page 170: ......
Page 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Page 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Page 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Page 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Page 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Page 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Page 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
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