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KSZ8841-PMQL Datasheet, PDF (1/2 Pages) Micrel Semiconductor – Single-Port Ethernet MAC Controller with PCI Interface | |||
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www.micrel.com
KSZ8841
PMQL/PMQLI
Product Brief
Ethernet MAC Controller with
PCI Interface
Description
The KSZ8841P is a single chip Fast Ethernet MAC con-
troller with a 32 bit/33MHz PCI processor interface. The
KSZ8841P is fully compliant with the IEEE 802.3u stan-
dard. It will also be available in an Industrial Temperature
part, the KSZ8841-PMQLI from Q1 2006.
Physical signal transmission and reception are enhanced
through the use of analog circuitry that makes the design
more efï¬cient and allows for lower power consumption
and smaller chip die size. The KSZ8841P is designed
with a low-power CMOS design and a high-performance
process that uses a single 3.3V power supply with 5V
tolerant I/O.
The KSZ8841P is a mixed signal analog/digital device of-
fering wake-on-LAN technology. Its extensive feature set
includes management information base (MIB) counters
and CPU control/data interfaces to effectively address both
current and emerging Fast Ethernet applications.
Beneï¬ts
⢠Single chip Ethernet controller with IEEE 802.3u
support
⢠32 bit/33MHz PCI bus for different host processor
interfaces
⢠Early TX/RX mode support, to allow for âcut thruâ in
Potency Critical Industrial Ethernet or Embedded
Ethernet Application
⢠Dynamic buffer memory scheme
â Essential for applications such as Video over IP
where image jitter is unacceptable
⢠Micrel LinkMDTM cable diagnostic capabilities to
determine cable length and distance to fault, and to
diagnose faulty cables
⢠Wake-on-LAN technology
⢠HP Auto MDIX crossover with disable and enable
option
⢠Enhanced power management feature with power-
down feature
⢠Industrial Temperature support: â40oC to +85oC
Block Diagram
Ethernet MAC
Internal IEEE 802.3 MII
PHY
Core
MDI
To transform or
fiber optic module
32b/33MHz
PCI Interface
TX/RX Buffer
(8K)
Serial EEPROM
LinkMD is a trademark of Micrel, Inc.
Magic Packet is a trademark of Advanced Micro Devices, Inc.
Micrel Semiconductor TEL: 1.408.944.0800 FAX: 1.408.474.1000 HTTP:// www.micrel.com
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