GEMPLUS GFM4K Technical Specifications v1.0 (1992-09)

Audience

How to Use This Guide

OVERVIEW

TERMINOLOGY

THE GFM4K MEMORY STRUCTURE

GFM4K COMMANDS

I2C Bus Protocol

Bit Transfer

Data Valididy

Start and Stop Conditions

Data Transfer

Acknowledge

The GFM Cards and I2C

Update Sequences

Update Byte Sequence

Update Page

Read Sequences

Read Current Address

Read Selected Address

Read Sequential Address

Reader Commands

ISO In Commands

Define Card Type

Update Bytes

ISO Out Commands

Read a String of Bytes

Driver Commands

ISO In Commands

ISO Out Commands

ELECTRICAL CHARACTERISTICS

Maximum Ratings

DC Characteristics

AC Characteristics

PHYSICAL CHARACTERISTICS

Card Contacts

Card Reliability

GEMPLUS PRODUCTS & SERVICES

Card Personalization Services

Smart Card Tools