zl50415 Zarlink Semiconductor, zl50415 Datasheet - Page 44
zl50415
Manufacturer Part Number
zl50415
Description
Managed 16-port 10/100 M + 2-port 1 G Ethernet Switch
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50415.pdf
(163 pages)
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11.0
11.1
The 10/100 RMII ethernet port can function in GPSI (7WS) mode when the corresponding TXEN pin is strapped low
with a 1 K pull down resistor. In this mode, the TXD[0], TXD[1], RXD[0] and RXD[1] serve as TX data, TX clock, RX
data and RX clock respectively. The link status and collision from the PHY are multiplexed and shifted into the
switch device through external glue logic. The duplex of the port can be controlled by programming the ECR
register. The GPSI interface can be operated in port based VLAN mode only.
GPSI connection
GPSI (7WS) Interface
5041X
Figure 15 - GPSI (7WS) Mode Connection Diagram
CRS_DV
RXD[0]
RXD[1]
TXD[1]
TXD[0]
TXEN
Zarlink Semiconductor Inc.
ZL50418
rx_clk
tx_clk
txen
rxd
crs
txd
44
Ethernet
Port 0
PHY
Serializer
Serializer
Collision
Ethernet
(CPLD)
(CPLD)
Port 15
PHY
Link
link0
link1
link2
link15
col0
col1
col2
col15
Data Sheet
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