Reset Logic - SMC Networks SMC91C95 Product Manual

ESET LOGIC
R
The pins and bits involved in the different reset
mechanisms are:
RESET - Input Pin
RESETS THE
FOLLOWING
FUNCTIONS
RESET Pin All internal logic
POR Circuit Generates an internal reset of at least 15 msec, with same effect as the RESET pin
ECOR The Ethernet controller
Register function and Ethernet
SRESET Bit PCMCIA Configuration
Registers except for the bit
itself
MCOR The Modem controller
Register function and Modem
SRESET Bit PCMCIA Configuration
Registers except for the bit
itself
SOFT RST The Ethernet Controller
itself except for the IA,
CONF, and BASE registers.
It does not reset any
PCMCIA Configuration
Register.
POR -
nMRESET -
SRESET -
MCOR,
SOFT RST - EPH Soft Reset bit in RCR
Table 5 - Reset Functions
ACTIVATES
nMRESET
33
Internal circuit activated by Power
On
Output pin to reset modem
Soft Reset bit in ECOR and
one SRESET bit for each function.
SAMPLES TRIGGERS
ISA VS. EEPROM
PCMCIA READ
MODE
Yes Yes
No No
No No
No No