83C5121-IL Просмотр технического описания (PDF) - Atmel Corporation

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производитель

83C5121-IL

8-bit Microcontroller with Multiprotocol Smart Card Interface

Atmel Corporation 

A/T8xC5121

Signals

Table 1. Ports Description

Port

P1.0

Signal

Name

CIO

Alternate

P1.1

CC8

P1.2 CPRES

P1.3

CC4

P1.4

CCLK

P1.5

CRST

All the T8xC5121 signals are detailed in Table 1.

The port structure is described in Section “Port Structure Description”.

Internal

Power

Supply

CVCC

CVCC

VCC

CVCC

CVCC

CVCC

ESD

4 kV

4 kV

4 kV

4 kV

4 kV

4 kV

Type Description

Smart card interface function

I/O

Card I/O.

Input/Output function

I/O

P1.0 is a bi-directional I/O port .

Reset configuration

I

Input .

Smart card interface function

O

Card contact 8

Output function

O

P1.1 is a Push-pull port.

Reset configuration

I

Input

Smart card interface function

I

Card presence

Input/Output function

I/O P1.2 is a bi-directional I/O port with internal pull-ups- ( External Pull-up

configuration can be selected).

Reset configuration

I

Input (high level due to internal pull-up)

Smart card interface function

O

Card contact 4

Output function

O

P1.3 is a Push-pull port.

Reset configuration

I

Input (high level due to internal pull-up)

Smart card interface function

O

Card clock

Input/Output function

I/O

P1.4 is a a Push-pull port.

Reset configuration

O

Output at low level

Smart card interface function

O

Card reset

Input/Output function

I/O

P1.5 is a a Push-pull port.

Reset configuration

O

Output at low level

5

4164G–SCR–07/06

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