21
DN-V1700
Description
Pin No.
Name
Buffer
Type
Symbol
120
Receive Clock
RX25
I with
Input. Receive clock input from MII. Nibble rate clock. (25MHz for 100Mbps &
pullup
2.5MHz for 10Mbps).
123-126
Receive Data
RXD0-
I with
Inputs. Received Data nibble from MII PHY.
RXD3
pullup
27
Management Data
MDI
I with
MII management data input.
Input
pulldown
28
Management Data
MDO
O4
MII management data output.
Output
29
Management Clock
MCLK
O4
MII management clock
I with
Input. Indicates a code error detected by PHY. Used by the LAN91C111 to
128
Receive Error
RX_ER
pulldown
discard the packet being received. The error indication reported for this event is
the same as a bad CRC (Receive Status Word bit 13).
nChip Select
Output. Chip Select provided for mapping of PHY functions into LAN91C111
4
Output
nCSOUT
O4
decoded space. Active on accesses to LAN91C111’s eight lower addresses
when the BANK SELECTED is 7.
14
External Resistor
RBIAS
NA
Transmit Current Set. An external resistor connected between this pin and GND
will set the output current for the TP transmit outputs.
16
TPO+
O/I
Twisted Pair Transmit Output, Positive.
17
TPO-
O/I
Twisted Pair Transmit Output, Negative.
19
TPI+
I/O
Twisted Pair Receive input, Positive.
20
TPI-
I/O
Twisted Pair Receive input, Negative.
24
nLEDB
OD
PHY LED Output.
25
nLEDA
OD
PHY LED Output.
Note (1) - If the EEPROM is enabled.
Summary of Contents for DN-V1700
Page 8: ...FOIL SIDE 8 7 6 5 4 3 2 1 A B C D E DN V1700 8...
Page 9: ...COMPONENT SIDE 8 7 6 5 4 3 2 1 A B C D E DN V1700 9 GU 3421 PANEL UNIT Ass y...
Page 10: ...COMPONENT SIDE 8 7 6 5 4 3 2 1 A B C D E DN V1700 10 GU 3485 PC HDD UNIT Ass y...
Page 11: ...FOIL SIDE 8 7 6 5 4 3 2 1 A B C D E DN V1700 11...