SM59R09A5C25 参数 Datasheet PDF下载

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