There are many different microcontrollers on the market
today that are being used in embedded control
applications. Many of these embedded control systems
need non-volatile memory. Because of their small
footprint, byte level flexibility, low I/O pin requirement,
low power consumption and low cost, Serial EEPROMs
are a popular choice for non-volatile storage.
Microchip Technology Incorporated addresses this need
by offering a full line of Serial EEPROMs covering
industry standard serial communication protocols for
2-wire and 3-wire communication. The theory, operation
and differences of these two protocols are discussed in
detail in Microchip’s application note AN536. The reader
should refer to AN536 if unfamiliar with 2-wire and/or
3-wire communication protocols. Serial EEPROM
devices are available in a variety of densities,
operational voltage ranges and packaging options. AN609
Interfacing Microchip Serial EEPROMs to Motorola 68HC11 Microcontroller
For Microchip 2-wire devices (24CXXA, 24LCXX,
Author: Keith Pazul 24LCXXB, 24AAXX devices, excluding 24XX32 and
Memory and ASSP Division 24XX65 devices), there are three programs to perform
some of the basic communication functions.
SRDMT2W.ASM - 2-Wire Sequential Read
INTRODUCTION
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