MDS105 Datasheet, PDF (23/35 Pages) Zarlink Semiconductor Inc – Unmanaged 5-Port 10/100 Mbps Ethernet Switch

MDS105
12.0 MDS105 Pin Descriptions
Note:
# Active low signal
I
Input signal
S Input signal with Schmitt-Trigger
O Output signal
OD Open-Drain driver
I/O Input & Output signal
SL Slew Rate Controlled
D Pulldown
U Pullup
5 5 V Tolerance
Data Sheet
Pin No(s).
Symbol
Frame Buffer Memory Interface
201, 200, 199, 197, 196,
195, 193, 192, 191, 190,
188, 187, 186, 185, 183,
182, 181, 179, 178, 177,
176, 174, 173, 172, 170,
169, 168, 167, 165, 164,
163, 161
L_D[31:0]
203, 151, 158, 160, 10, 9, L_A[18:2]
8, 6, 5, 4, 2, 1, 208, 206,
205, 204, 150
153
L_CLK
155
L_WE#
156
L_OE#
157
L_ADSC#
MII Management Interface
120
M_MDC
122
M_MDIO
I²C Interface (Serial EEPROM Interface)
123
SCL
124
SDA
Parallel Port Management Interface
127
STROBE
128
DATA0
129
ACK
Port 0 RMII Interface
24, 23
M0_RXD[1:0]
22
M0_CRS_DV
21, 20
M0_TXD[1:0]
19
M0_TXEN
Port 1 RMII Interface
31, 30
M1_RXD[1:0]
Type
Name & Functions
I/O, U, SL Databus to Frame Buffer Memory
I/O, U, SL Address pins for buffer memory
O
O, SL
O
O, SL
Frame Buffer Memory Clock
Frame Buffer Memory Write Enable
Frame Buffer Memory Output Enable
Frame Buffer Memory Address Status Control
O
I/O, U
MII Management Data Clock
MII Management Data I/O
O, U, 5
I²C Data Clock
I/O, U, OD, 5 I²C Data I/O
I, U, S, 5
I, U, 5
O, U, OD, 5
Strobe Pin
Data Pin
Acknowledge Pin
I, U
Port 0 Receive Data
I, D
Port 0 Carrier Sense and Data Valid
O
Port 0 Transmit Data
O
Port 0 Transmit Enable
I, U
Port 1 Receive Data
23
Zarlink Semiconductor Inc.