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SN8P1602A Datasheet(PDF) 38 Page - SONiX Technology Company

Part # SN8P1602A
Description  8-Bit Micro-Controller
PDF  76 Pages
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Manufacturer  SONIX [SONiX Technology Company]
Direct Link  http://www.sonix.com.tw
Logo SONIX - SONiX Technology Company

SN8P1602A Datasheet(HTML) 38 Page - SONiX Technology Company

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SN8P1602B
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 38
Version 1.1
7
7
7 OSCILLATORS
OVERVIEW
The SN8P1602B is a dual clock micro-controller system. There are external high-speed clock and internal low-speed
clock. The high-speed clock is generated from the external oscillator circuit. The low-speed clock is generated from
on-chip RC oscillator circuit.
Both the external high-speed clock and the internal low-speed clock can be system clock (Fosc). The system clock is
divided by 4 to be the instruction cycle (Fcpu).
Fcpu = Fosc / 4
CLOCK BLOCK DIAGRAM
fl
CPUM0
LXOSC.
fcpu
fosc/4
CPUM0
fh
HXOSC.
XIN
XOUT
STPHX
HXRC
CPUM0
Divided by 4
CLKMD
Divided by 2
OSG
Divided by 2
1 : Disable
0 : Enable
OSG : Oscillator Safe Guard
1 : Disable -- System Default
0 : Enable
HXRC(1:0) is code option
•00= RC
•01 =32 Khz Oscillator
•10 = High Speed Oscillator (>10Mhz)
•11 = Standard Oscillator (4Mhz)
fl
CPUM0
LXOSC.
fl
CPUM0
LXOSC.
fcpu
fosc/4
CPUM0
fcpu
fosc/4
CPUM0
fh
HXOSC.
XIN
XOUT
STPHX
HXRC
CPUM0
fh
HXOSC.
XIN
XOUT
STPHX
HXRC
CPUM0
Divided by 4
CLKMD
Divided by 4
Divided by 4
CLKMD
Divided by 2
Divided by 2
OSG
OSG
Divided by 2
1 : Disable
0 : Enable
OSG : Oscillator Safe Guard
1 : Disable -- System Default
0 : Enable
HXRC(1:0) is code option
•00= RC
•01 =32 Khz Oscillator
•10 = High Speed Oscillator (>10Mhz)
•11 = Standard Oscillator (4Mhz)
HXOSC: External high-speed clock
LXOSC: Internal low-speed clock
OSG: Oscillator safe guard



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