LAN91C100 Просмотр технического описания (PDF) - SMSC -> Microchip

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LAN91C100

FEAST™ Fast Ethernet Controller

SMSC -> Microchip 

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OFFSET

NAME

8

MEMORY INFORMATION REGISTER

TYPE

READ ONLY

SYMBOL

MIR

HIGH

BYTE

FREE MEMORY AVAILABLE (IN BYTES * 256 * M)

1

1

1

1

1

1

1

1

LOW

BYTE

MEMORY SIZE (IN BYTES * 256 * M)

1

1

1

1

1

1

1

1

FREE MEMORY AVAILABLE This register can

be read at any time to determine the amount of

free memory. The register defaults to the

MEMORY SIZE upon reset or upon the RESET

MMU command.

MEMORY SIZE - This register can be read to

determine the total memory size.

All memory-related information is represented in

256 * M byte units, where the multiplier M is

determined by the MCR upper byte.

These registers default to FFh, which should be

interpreted as 256.

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