SM59R16A5/SM59R09A5/SM59R05A5
8-Bit Micro-controller
64KB/36KB/20KB with ISP Flash
& 2KB RAM embedded
1.4.5. Example of software reset
MOV TAKEY, #55h
MOV TAKEY, #AAh
MOV TAKEY, #5Ah ; enable SWRES write attribute
MOV SWRES, #FFh ; software reset MCU
1.5. Clocks
The default clock is the external crystal. This clock is used during the initialization stage. The major work of the
initialization stage is to determine the clock source used in normal operation.
The internal clock sources are from the on-chip RC-Oscillator with programmable frequency outputs as table 1-1，the
clock source can set by writer or ICP。
Table 1-1: Selection of clock source
Clock source
external crystal(default)
24MHz from internal OSC
20MHz from internal OSC
16MHz from internal OSC
12MHz from internal OSC
8MHz from internal OSC
4MHz from internal OSC
2MHz from internal OSC
1MHz from internal OSC
When RTC enabled, an external 32768Hz crystal may be connected on P3.6/P3.7 or XTAL1/XTAL2 according to user’s
configuration.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M047
17
Ver.G SM59R16A5 01/2014
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
