Sim2 M80 Dokumentacja Pobierz pdf (Strona 27)

M80 Hardware Design

M80_HD_V1.0 - 27 -

VDD_EXT+0.3

SIM2 interface

PIN NAME

PIN

NO.

I/O

DESCRIPTION

DC

CHARACTERISTICS

COMMENT

SIM2_

VDD

107

O

Power supply for SIM

card

The voltage can be

selected by software

automatically. Either

1.8V or 3V.

Not supported at

present.

SIM2_

DATA

109

I/O

SIM data

3V：

VOLmax=0.4

VOHmin=

SIM1_VDD-0.4

1.8V:

VOLmax=

0.15*SIM1_VDD

VOHmin=

SIM1_VDD-0.4

SIM2_

CLK

108

O

SIM clock

3V：

VOLmax=0.4

VOHmin=

0.9*SIM1_VDD

1.8V:

VOLmax=

0.12*SIM1_VDD

VOHmin=

0.9*SIM1_VDD

SIM2_

RST

95

O

SIM reset

3V：

VOLmax=0.36

VOHmin=

0.9*SIM1_VDD

1.8V:

VOLmax=

0.2*SIM1_VDD

VOHmin=

0.9*SIM1_VDD

ADC

PIN NAME

PIN

NO.

I/O

DESCRIPTION

DC

CHARACTERISTICS

COMMENT

ADC0

2

I

General purpose

analog to digital

converter.

Voltage range: 0V to

2.8V

If unused, keep these

pins open.

ADC1

1

I

General purpose

analog to digital

Voltage range: 0V to

2.8V

If unused, keep these

pins open.

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