LAN91C95 Ver la hoja de datos (PDF) - SMSC -> Microchip

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LAN91C95

ISA/PCMCIA Full Duplex Single-Chip Ethernet and Modem Controller with RAM

SMSC -> Microchip 

RESET LOGIC

The pins and bits involved in the different reset

mechanisms are:

RESET -

Input Pin

POR -

nMRESET -

SRESET -

SOFT RST -

Internal circuit activated by Power

On

Output pin to reset modem

Soft Reset bit in ECOR and

MCOR, one SRESET bit for each

function.

EPH Soft Reset bit in RCR

TABLE 5 - RESET FUNCTIONS

RESETS THE

FOLLOWING FUNCTIONS

ACTIVATES

SAMPLES ISA

VS. PCMCIA

MODE

TRIGGERS

EEPROM

READ

RESET Pin All internal logic

nMRESET

Yes

Yes

POR Circuit Generates an internal reset of at least 15 msec, with same effect as the RESET pin

ECOR

Register

SRESET Bit

The Ethernet controller

function and Ethernet

PCMCIA Configuration

Registers except for the bit

itself

No

No

MCOR

Register

SRESET Bit

The Modem controller

function and Modem

PCMCIA Configuration

Registers except for the bit

itself

No

No

SOFT RST

The Ethernet Controller itself

except for the IA, CONF,

and BASE registers. It does

not reset any PCMCIA

Configuration Register

No

No

33

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