KSZ8041FTLI Micrel Inc, KSZ8041FTLI Datasheet - Page 15

• Manufacturer Part Number: KSZ8041FTLI
• Description: Physical Layer Transceiver 10/100BASE-FX ( )
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8041FTLI

• Number Of Drivers/receivers: 1/1
• Protocol: SMII
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-3294 - BOARD EVALUATION KSZ8041FTL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-3347

Micrel, Inc.
Strapping Options- KSZ8041TL/FTL
December 2009
(KSZ8041FTL)
(KSZ8041TL)
Pin Number
22
21
20
27
41
40
29
43
43
Pin Name
CONFIG2
CONFIG1
CONFIG0
PHYAD2
PHYAD1
PHYAD0
SPEED /
SPEED
no FEF
ISO
Type
Ipd/O
Ipd/O
Ipu/O
Ipd/O
Ipd/O
Ipd/O
Ipd/O
Ipu/O
Ipu/O
(1)
Pin Function
The PHY Address is latched at power-up / reset and is configurable to any value from
1 to 7.
The default PHY Address is 00001.
PHY Address bits [4:3] are always set to ‘00’.
The CONFIG[2:0] strap-in pins are latched at power-up / reset and are defined as
follows:
ISOLATE mode
During power-up / reset, this pin value is latched into register 0h bit 10.
SPEED mode
During power-up / reset, this pin value is latched into register 0h bit 13 as the Speed
Select, and also is latched into register 4h (Auto-Negotiation Advertisement) as the
Speed capability support.
If copper mode (FXEN=0), pin strap-in is SPEED mode.
During power-up / reset, this pin value is latched into register 0h bit 13 as the Speed
Select, and also is latched into register 4h (Auto-Negotiation Advertisement) as the
Speed capability support.
If fiber mode (FXEN=1), pin strap-in is no FEF.
This pin value is latched during power-up / reset.
CONFIG[2:0]
000
001
010
011
100
101
110
111
Pull-up = Enable
Pull-down (default) = Disable
Pull-up (default) = 100Mbps
Pull-down = 10Mbps
Pull-up (default) = 100Mbps
Pull-down = 10Mbps
Pull-up (default) = Enable Far-End Fault
Pull-down = Disable Far-End Fault
Mode
MII (default)
RMII
SMII
Reserved – not used
MII 100Mbps Preamble Restore
RMII back-to-back
MII back-to-back
Reserved – not used
15
KSZ8041TL/FTL/MLL
M9999-120909-1.2