SM59R16A2 Datasheet, PDF (45/67 Pages) SyncMOS Technologies,Inc – 8-Bit Micro-controller

SM59R16A2/SM59R08A2
8-Bit Micro-controller
64KB/32KB ISP Flash & 2KB RAM embedded
12 Power Management Unit
Power management unit serves two power management modes, IDLE and STOP, for the users to do
power saving function.
Mnemonic: PCON
7
6
5
4
3
SMOD MDUF
-
PMW
-
Address: 87h
2
1
0
Reset
-
STOP IDLE 00h
STOP: Stop mode control bit. Setting this bit turning on the Stop Mode.
Stop bit is always read as 0
IDLE: Idle mode control bit. Setting this bit turning on the Idle Mode.
Idle bit is always read as 0
12.112.1 Idle mode
Setting the IDLE bit of PCON register invokes the IDLE mode. The IDLE mode stop the clock
source for CPU but keep the peripherals under running condition. The power consumption will drop
because the CPU is not active now. The CPU can exit the IDLE state with any interrupts or a reset.
12.212.2 Stop mode
Setting the STOP bit of PCON register invokes the STOP mode. All internal clocking in this mode is
turned off. The CPU will exit this state from a no-clocked external interrupt or a reset condition.
Internally generated interrupts (timer, serial port, watchdog ...) are not useful since they require
clocking activity.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M034
45
Ver.B SM59R16A2/SM59R08A2 06/2009