KS8721SL-EVAL Micrel Inc, KS8721SL-EVAL Datasheet - Page 10

• Manufacturer Part Number: KS8721SL-EVAL
• Description: BOARD EVAL EXPERIMENT KS8721SL
• Manufacturer: Micrel Inc

Specifications of KS8721SL-EVAL

• Main Purpose: Interface, Ethernet Controller (PHY and MAC)
• Embedded: No
• Utilized Ic / Part: KSZ8721SL
• Primary Attributes: 1 Port, 100BASE-TX/100BASE-FX/10BASE-T
• Secondary Attributes: MII, RMII, Auto MDI, MDIX, >130 Meter Cable Driver, LDO, IEEE802.3u Compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 576-1010

KS8721BL/SL (3.3V Single Power Supply 10/100BaseTX/FX MII Physical Layer Transceiver)
S
Note: Strap-in is latched during power up or reset.
Signal Name
PHYAD[4:1] /
RXD[0:3]
PHYAD0/
INT#
PCS_LPBK /
RXDV
ISO / RXER
RMII / COL
RMII_BTB /
CRS
SPD100 /
No FEF /
LED1
DUPLEX /
LED2
NWAYEN /
LED3
PD#
TRAPPING
O
Pin
No.
6,5,
4,3
25
9
11
21
22
27
28
29
30
PTIONS
I/O
Ipd/O
Ipu/O
Ipd/O Enables PCS_LPBK mode at power-up / reset.
Ipd/O Enables ISOLATE mode at power-up /reset.
Ipd/O Enables RMII mode at power-up / reset.
Ipd/O Enable RMII_BTB mode at power-up / reset.
Ipu/O Latched into Register 0h bit 13 during power-up /
Ipu/O Latched into Register 0h bit 8 during power-up /
Ipu/O Nway (auto-=Negotiation) Enable
Ipu
Description
PHY Address latched at power-up / reset. The
default PHY address is 00001.
PD (default) = Disable, PU = Enable
PD (default) = Disable, PU = Enable
PD (default) = Disable, PU = Enable
PD (default) = Disable, PU = Enable
reset.
PD = 10Mb/s, PU (default) = 100Mb/s.
If SPD100 is asserted during power-up / reset,
this pin also latched as the Speed Support in
register 4h. (If FXEN is pulled up, the latched
value 0 means no Far _End _Fault.)
reset.
PD = Half Duplex, PU (default) = Full duplex.
If Duplex is pulled up during reset, this pin also
latched as the Duplex support in register 4h.
Latched into Register 0h bit 12 during power-up /
reset. PD = Disable Auto-Negotiation, PU (default)
= Enable Auto-Negotiation
Power Down Enable
PU (default) = Normal operation, PD = Power
down mode
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KS8721BL/SL Preliminary Rev 0.90
Aug, 2003