zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 25

• Manufacturer Part Number: zl50411
• Description: Managed 9-port Fast Ethernet Switch With Private Vlan
• Manufacturer: Zarlink Semiconductor

Ethernet
1.7
The ZL50411 has two separate power supplies: V
sequence is for V
but by no more than 2 V.
Both supplies may be powered-down simultaneously.
See “Typical Reset & Bootstrap Timing Diagram” on page 130 for more details on reset and bootstrap sampling.
2.0
8 Fast
Ports
Power Sequencing
Block Functionality
SCLK
V
RESIN
DC
CC
Fast Ethernet
(RMII/MII/GPSI)
>0.2 V
to be applied first, followed by the V
Interface
192 KB
Memory
Frame
Buffer
MAC
Parallel Interface
DC
*
CPU 8/16 Bit
Figure 3 - Functional Block Diagram
Figure 2 - Power-up Sequence
Per -Class Traffic Shaping,
I
L2 Search Engine
2
Single - Field Classifier,
Interface
C & Serial
SP/WFQ Scheduling,
Zarlink Semiconductor Inc.
Database & RMON Counters
10 ns
Frame Engine
Congestion WRED
4K MAC, 4K VLAN
Management Module
& Queuing
Network Management
ZL50411
DD
25
DD
(1.8 V) and V
> 10 µs
supply. V
JTAG
CC
CC
should lead V
(3.3 V). The recommended power-up
Databases
Core supply (V
I/O supply (V
Uplink MAC
64 KB
Control
Switch
CPU MAC
Interface
Interface
Interface
(RvMII)
MDIO
DD
CC
DD
supply by at least 0.2 V,
= 3.3V)
= 1.8V)
Data Sheet
t
t
t
Ethernet
Ethernet
Fast
Fast
Port
Port