KS8721SL-EVAL Micrel Inc, KS8721SL-EVAL Datasheet - Page 29
KS8721SL-EVAL
Manufacturer Part Number
KS8721SL-EVAL
Description
BOARD EVAL EXPERIMENT KS8721SL
Manufacturer
Micrel Inc
Datasheet
1.KS8721SL-EVAL.pdf
(45 pages)
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)
Auto Crossover (Auto MDI/MDI-X)
Automatic MDI/MDI-X configuration is intended to eliminate the need for
crossover cables between similar devices. The assignment of pin-outs for a
10/100 BASE-T crossover function cable is shown below.
This feature can eliminate the confusion in real applications so both straight
cable and crossover cable can be used. This feature is controlled by
register 1f:13, see the “Register 1fh” section for details.
1 0 / 1 0 0 B a s e - T
M e d ia D e p e n d e n t I n t e r f a c e
M o d u la r C o n n e c t o r ( R J 4 5 )
1 0 / 1 0 0 B A S E - T
M e d ia D e p e n d e n t In t e r f a c e
T r a n s m i t P a ir
R e c e iv e P a ir
T r a n s m it P a ir
R e c e iv e P a i r
( R e p e a t e r o r S w it c h )
M o d u la r C o n n e c t o r
( R J 4 5 )
N I C
H U B
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
S t r a i g h t T h r o u g h C a b l e
C r o s s o v e r C a b l e
- 29 -
KS8721BL/SL Preliminary Rev 0.90
1 0 / 1 0 0 B a s e - T
M e d i a D e p e n d e n t I n t e r f a c e
1 0 / 1 0 0 B a s e - T
M e d ia D e p e n d e n t I n t e r f a c e
M o d u la r C o n n e c t o r ( R J 4 5 )
( R e p e a t e r o r S w i t c h )
M o d u l a r C o n n e c t o r
1
2
3
4
5
6
7
8
( R e p e a t e r o r S w it c h )
1
2
3
4
5
6
7
8
( R J 4 5 )
T r a n s m i t P a i r
H U B
R e c e iv e P a ir
T r a n s m it P a ir
R e c e iv e P a ir
H U B
Aug, 2003