Datasheet

10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

Revision 1.92 (06-27-11) 58 SMSC LAN91C111 REV C

DATASHEET

8.14 Bank 1 - General Purpose Register

This register can be used as a way of storing and retrieving non-volatile information in the EEPROM

to be used by the software driver. The storage is word oriented, and the EEPROM word address to

be read or written is specified using the six lowest bits of the Pointer Register.

This register can also be used to sequentially program the Individual Address area of the EEPROM,

that is normally protected from accidental Store operations.

This register will be used for EEPROM read and write only when the EEPROM SELECT bit in the

Control Register is set. This allows generic EEPROM read and write routines that do not affect the

basic setup of the LAN91C111.

8.15 Bank 1 - Control Register

RCV_BAD - When set, bad CRC packets are received. When clear bad CRC packets do not generate

interrupts and their memory is released.

AUTO RELEASE - When set, transmit pages are released by transmit completion if the transmission

was successful (when TX_SUC is set). In that case there is no status word associated with its packet

number, and successful packet numbers are not even written into the TX COMPLETION FIFO. A

sequence of transmit packets will generate an interrupt only when the sequence is completely

OFFSET NAME TYPE SYMBOL

GENERAL PURPOSE

HIGH

BYTE

HIGH DATA BYTE

00000000

LOW

BYTE

LOW DATA BYTE

00000000

OFFSET NAME TYPE SYMBOL

C CONTROL REGISTER READ/WRITE CTR

HIGH

BYTE

Reserved RCV_

BAD

Reserved Reserved AUTO

RELEASE

Reserved Reserved Reserved

00010010

LOW BYTE LE

ENABLE

Reserved Reserved EEPROM

SELECT

RELOAD STORE

00010000