ksz8041tl-ftl Micrel Semiconductor, ksz8041tl-ftl Datasheet - Page 16
ksz8041tl-ftl
Manufacturer Part Number
ksz8041tl-ftl
Description
10base-t/100base-tx/100base-fx Physical Layer Transceiver
Manufacturer
Micrel Semiconductor
Datasheet
1.KSZ8041TL-FTL.pdf
(58 pages)
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Micrel, Inc.
Note:
1.
Pin strap-ins are latched during power-up or reset. In some systems, the MAC receive input pins may drive high during
power-up or reset, and consequently cause the PHY strap-in pins on the MII/RMII/SMII signals to be latched high. In this
case, it is recommended to add 1K pull-downs on these PHY strap-in pins to ensure the PHY does not strap-in to
ISOLATE or PCS Loopback mode, or is not configured with an incorrect PHY Address.
April 2007
(KSZ8041FTL)
(KSZ8041TL)
Pin Number
Ipu/O = Input with internal pull-up (40K +/-30%) during power-up/reset; output pin otherwise.
Ipd/O = Input with internal pull-down (40K +/-30%) during power-up/reset; output pin otherwise.
23
42
42
Pin Name
NWAYEN
NWAYEN
DUPLEX
Type
Ipu/O
Ipu/O
Ipu/O
(1)
Pin Function
DUPLEX mode
During power-up / reset, this pin value is latched into register 0h bit 8 as the Duplex
Mode.
Nway Auto-Negotiation Enable
During power-up / reset, this pin value is latched into register 0h bit 12.
If copper mode (FXEN=0), pin strap-in is Nway Auto-Negotiation Enable.
During power-up / reset, this pin value is latched into register 0h bit 12.
If fiber mode (FXEN=1), this pin configuration is always strapped to disable Auto-
Negotiation.
Pull-up (default) = Half Duplex
Pull-down = Full Duplex
Pull-up (default) = Enable Auto-Negotiation
Pull-down = Disable Auto-Negotiation
Pull-up (default) = Enable Auto-Negotiation
Pull-down = Disable Auto-Negotiation
16
M9999-042707-1.1
KSZ8041TL/FTL
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