EVB8720 SMSC, EVB8720 Datasheet - Page 8

• Manufacturer Part Number: EVB8720
• Description: Ethernet Modules & Development Tools LAN8720 Design BRD
• Manufacturer: SMSC

Specifications of EVB8720

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.1 (05-24-10)
2.2.5
2.2.6
2.2.7
PLUG/HEADER
REFERENCE
TEST POINT
LED1
LED2
TP1
TP2
TP3
TP4
TP5
T1
P1
J1
LEDs
Note: LED1 and LED2 are located inside the RJ45 connector. LED1 and LED2 may function active-
Test Points
Note 2.2
Note 2.3
System Connections
high or active-low depending on the configuration of the REGOFF and nINTSEL straps,
respectively. Refer to the LAN8720A Datasheet and LAN8720A schematics for additional
information.
VDDIO Test Point (Purple)
+3.3V Test Point (Orange)
+5.0V Test Point (Red)
+1.2V VDDCR Test Point (Unpopulated)
(Note
Ground Test Point (Black)
RJ45 with Integrated LEDs
2x10 RMII Header
Note:
40-pin Female Connector
Note:
VDDCR is the internal +1.2V regulated output. When REGOFF is enabled, the internal
1.2V regulator is disabled. In this case, an external 1.2V regulator must be supplied to test
point TP3.
The LAN8720A’s VDDIO power may be supplied externally at a voltage other than +3.3V
as described in
2.2)
COLOR
Yellow
Green
Refer
Refer
DESCRIPTION
DESCRIPTION
Table 2.7
Table 2.8
Table 2.6 System Connections
Section 2.1, "Power," on page
Link/Activity
Active when the PHY has established a valid link with a link partner
and blinks when activity is detected.
Speed
Active when a 100BASE-TX link has been established. Inactive when
a 10BASE-T link has been established or during line isolation.
Table 2.5 Test Points
USER MANUAL
to for a full pin list
to for a full pin list
Table 2.4 LEDs
8
+3.3V
+5.0V
+1.2V
Ground
Pulse J0011D01BNL
Adam Tech PH2-20-U-A
Tyco 5173278-2
+3.3V
3.
INDICATION
(Note
EVB8720 Evaluation Board User Manual
2.3)
CONNECTION
PART
SMSC EVB8720