LAN9514_12 Datasheet, PDF (12/52 Pages) SMSC Corporation – USB 2.0 Hub and 10/100 Ethernet Controller

NUM
PINS
1
NAME
Test 1
1
Test 2
Test 3
1
1
24 MHz Clock
Enable
1
24 MHz Clock
Test 4
1
USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
Table 2.3 Miscellaneous Pins (continued)
SYMBOL
TEST1
BUFFER
TYPE
DESCRIPTION
-
Used for factory testing, this pin must always be left
unconnected.
TEST2
TEST3
-
Used for factory testing, this pin must always be
connected to VSS for proper operation.
-
Used for factory testing, this pin must always be
connected to VDD33IO for proper operation.
CLK24_EN
CLK24_OUT
TEST4
IS
This pin enables the generation of the 24 MHz
clock on the CLK_24_OUT pin.
08
This pin outputs a 24 MHz clock that can be used
a reference clock for a partner hub.
-
Used for factory testing, this pin must always be left
unconnected.
NUM
PINS
NAME
1
Upstream
USB DMINUS 0
Upstream
1
USB
DPLUS 0
1
Downstream
USB DMINUS 2
1
Downstream
USB DPLUS 2
1
Downstream
USB DMINUS 3
1
Downstream
USB DPLUS 3
1
Downstream
USB DMINUS 4
1
Downstream
USB DPLUS 4
1
Downstream
USB DMINUS 5
1
Downstream
USB DPLUS 5
SYMBOL
USBDM0
Table 2.4 USB Pins
BUFFER
TYPE
DESCRIPTION
AIO Upstream USB DMINUS signal.
USBDP0
AIO Upstream USB DPLUS signal.
USBDM2
USBDP2
USBDM3
USBDP3
USBDM4
USBDP4
USBDM5
USBDP5
AIO Downstream USB peripheral 2 DMINUS signal.
AIO Downstream USB peripheral 2 DPLUS signal.
AIO Downstream USB peripheral 3 DMINUS signal.
AIO Downstream USB peripheral 3 DPLUS signal.
AIO Downstream USB peripheral 4 DMINUS signal.
AIO Downstream USB peripheral 4 DPLUS signal.
AIO Downstream USB peripheral 5 DMINUS signal.
AIO Downstream USB peripheral 5 DPLUS signal.
Revision 1.2 (02-29-12)
12
DATASHEET
SMSC LAN9514/LAN9514i