SMSC LAN9514 - Manual (Page 12)

USB Hub with Integrated 10/100 Ethernet Controller
Datasheet
Revision 1.0 (04-20-09) 12 SMSC LAN9514
DATASHEET
1
Test 2 TEST2 - Used for factory testing, this pin must always be
connected to VSS for proper operation.
1
Test 3 TEST3 - Used for factory testing, this pin must always be
connected to VDD33IO for proper operation.
1
24 MHz Clock
Enable
CLK24_EN IS This pin enables the generation of the 24 MHz
clock on the CLK_24_OUT pin.
1
24 MHz Clock CLK24_OUT 08 This pin outputs a 24 MHz clock that can be used
a reference clock for a partner hub.
1
Test 4 TEST4 - Used for factory testing, this pin must always be left
unconnected.
Table 2.4 USB Pins
NUM
PINS NAME SYMBOL
BUFFER
TYPE DESCRIPTION
1
Upstream
USB DMINUS 0
USBDM0 AIO Upstream USB DMINUS signal.
1
Upstream
USB
DPLUS 0
USBDP0 AIO Upstream USB DPLUS signal.
1
Downstream
USB DMINUS 2
USBDM2 AIO Downstream USB peripheral 2 DMINUS signal.
1
Downstream
USB DPLUS 2
USBDP2 AIO Downstream USB peripheral 2 DPLUS signal.
1
Downstream
USB DMINUS 3
USBDM3 AIO Downstream USB peripheral 3 DMINUS signal.
1
Downstream
USB DPLUS 3
USBDP3 AIO Downstream USB peripheral 3 DPLUS signal.
1
Downstream
USB DMINUS 4
USBDM4 AIO Downstream USB peripheral 4 DMINUS signal.
1
Downstream
USB DPLUS 4
USBDP4 AIO Downstream USB peripheral 4 DPLUS signal.
1
Downstream
USB DMINUS 5
USBDM5 AIO Downstream USB peripheral 5 DMINUS signal.
1
Downstream
USB DPLUS 5
USBDP5 AIO Downstream USB peripheral 5 DPLUS signal.
Table 2.3 Miscellaneous Pins (continued)
NUM
PINS NAME SYMBOL
BUFFER
TYPE DESCRIPTION