KS8721SL-EVAL Micrel Inc, KS8721SL-EVAL Datasheet - Page 7

• 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)
RXER / ISO
GND
VDDC
TXER
TXC /
REFCLK
TXEN
TXD0
TXD1
TXD2
TXD3
COL / RMII
CRS /
RMII_BTB
GND
VDDIO
INT# /
PHYAD0
LED0 / TEST
LED1 /
SPD100/
noFEF
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Ipd/O MII Receive Error Output
Gnd
Pwr
Ipd
I/O
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd/O MII Collision Detect Output
Ipd/O MII Carrier Sense Output
Gnd
Pwr
Ipu/O Management Interface (MII) Interrupt Out.
Ipu/O
Ipu/O
The pull-up/pull-down value is latched as ISOLATE
during reset. See “Strapping Options” section for
details.
Ground
Digital core 2.5 V only power supply (See “Circuit
design ref for power supply” section for details)
MII Transmit Error Input
MII Transmit Clock Output
RMII Reference Clock Input
MII Transmit Enable Input
MII Transmit Data Input
MII Transmit Data Input
MII Transmit Data Input
MII Transmit Data Input
The pull-up/pull-down value is latched as RMII
select during reset. See “Strapping Options”
section for details.
The pull-up/pull-down value is latched as RMII
Loop-back during reset when RMII mode is
selected. See “Strapping Options section” for
details.
Ground
Digital IO 2.5 / 3.3V tolerance power supply
(See “Circuit design ref for power supply” section
for details)
Latched as PHYAD[0] during power up / reset.
See “Strapping Options” Section for details.
Link/Activity LED Output
The external pull down enable test mode and only
used for the factory test. Active Low
Speed LED Output
Latched as SPEED (Register 0, bit 13) during
power up / reset. See “Strapping Options” Section
for details. Active Low
Link/Act
No Link
Activity
Speed
Link
- 7 -
Pin State
Pin State
KS8721BL/SL Preliminary Rev 0.90
H
L
-
LED Definition
LED Definition
Toggle
Off
On
Aug, 2003