ST20-GP1 datasheet(110/116 Pages) STMICROELECTRONICS

110 / 116 page

ST20-GP1

110/116

20 Pin list

Signals names are preﬁxed by not if they are active low, otherwise they are active high.

Supplies

Clocks

System services

Links

Interrupts

In/Out

Function

VDD

Power supply

GND

Ground

Table 20.1 ST20-GP1 supply pins

In/Out

Function

LowPowerClockIn

Low power input clock

LowPowerClockOsc

in/out

Low power clock oscillator

LowPowerStatus

out

Low power status

notWdReset

out

Watchdog timer reset

RTCVDD

Real time clock supply

Table 20.2 ST20-GP1 low power controller and real time clock pins

In/Out

Function

ClockIn

System input clock – PLL or TimesOneMode

SpeedSpeed0-1

Speed selectors

notRST

Reset

CPUReset

System reset

CPUAnalyse

Error analysis

ErrorOut

out

Error indicator

Table 20.3 ST20-GP1 system services pins

In/Out

Function

LinkIn

Serial data input channel

LinkOut

out

Serial data output channel

Table 20.4 ST20-GP1 link pins

In/Out

Function

Interrupt0-1

Interrupts

Table 20.5 ST20-GP1 interrupt pins

ST20-GP1 데이터시트(PDF) 110 Page - STMicroelectronics

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