MTD655 Datasheet, PDF (8/18 Pages) List of Unclassifed Manufacturers – 5 Port 10M/100M Hub With 2 port Switch

MYSON
TECHNOLOGY
MTD655
Name
NC_11
TXEN0
TXEN2
MDC
LEDCLK
LEDDAT
Power On Configuration Set Up Table
Pin Number
11
I/O
Descriptions
I/O Port0 MII interface enable : ( power on external jumper configuration )
- pin floating : Port0 MII interface disable (change to be RMII interface)
, not suit for 5 ports daul speed hub application.
- external pull_high: Port0 MII interface enable.
I/O Back_pressure disable : ( power on external jumper configuration )
18
- external pull_low (default ) : normal mode (back_pressure enbale)
- external pull_high: back_pressure disable
I/O Auto MII_setting bypass : ( power on external jumper configuration )
- external pull_low (default ) : normal mode ( auto MII_setting); after
42
power_on, MTD655 will auto setup PHY devices be forced in half_
duplex mode for repeater apllication.
- external pull_high: auto MII_setting bypass
I/O 1522 bytes packet accept enable : ( power on external jumper configura-
tion )
126
- external pull_low (default ) : normal mode ( <=1518 bytes packet
accept)
- external pull_high: <= 1522 bytes packet accept
I/O Hub dealy enhance : ( power on external jumper configuration )
125
- external pull_low (default ) : nomal hub propagation delay mode.
- external pull_high: enhanced hub propagational delay mode, for cov-
ering long latency PHY devices).
I/O External arbiter enable : ( power on external jumper configuration )
124
- external pull_low (default ) : normal mode (inter_repeater bus use
internal arbiter)
- external pull_high: inter_repeater bus use external arbiter .
8/18
MTD655 Revision 2.0 17/03/2000