RM48L950
RM48L750
RM48L550
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SPNS174–SEPTEMBER 2011
2.4.2.11 USB Host Port Controller Interface
Table 2-35. ZWT USB Host Port Controller Interface (USB1, USB2)
Terminal
Signal
Type
Default
Pull State
Pull Type
Description
Signal Name
337
ZWT
N2HET1[08]/MIBSPI1SIMO[1]/MII_TXD[3]/
USB1.OverCurrent
E18
Input Pull Down Fixed, 20uA
Overcurrent indication
from USB power switch
MIBSPI1NCS[0]/MIBSPI1SOMI[1]/MII_TXD[2]/
USB1.RCV
R2
Pull Up
Fixed, 20uA
Receive data from USB
port transceiver
MIBSPI5NENA/MII_RXD[3]/USB1.VM
H18
G19
NRZI encoded D-minus
from USB port transceiver
MIBSPI1NENA/N2HET1[23]/MII_RXD[2]/
NRZI encoded D-plus
USB1.VP
from USB port transceiver
GIOB[1]/USB1.PortPower
K2
B11
F3
Output Pull Down
-
N2HET1[30]/MII_RX_DV/USB1.SPEED
Transmit speed indication
MIBSPI1NCS[1]/N2HET1[17]/MII_COL/
USB1.SUSPEND
Pull Up
-
-
GIOB[0]/USB1.TXDAT
M2
Pull Down
N2HET1[10]/MII_TX_CLK/USB1.TXEN/
MII_TX_AVCLK4
D19
Transmit enable to port
transceiver
N2HET1[14]/USB1.TXSE0
A11
E3
Single-ended zero to port
transceiver
N2HET1[11]/MIBSPI3NCS[4]/N2HET2[18]/
USB2.OverCurrent/USB_FUNC.VBUSI
Input Pull Down Fixed, 20uA
Pull Down Fixed, 20uA
GIOB[3]/USB2.RCV/USB_FUNC.RXDI
GIOA[1]/USB2.VM/USB_FUNC.RXDMI
W10
C2
NRZI encoded D-minus
from USB port transceiver
GIOA[0]/USB2.VP/USB_FUNC.RXDPI
A5
T1
U1
V7
C1
V2
B3
NRZI encoded D-plus
from USB port transceiver
N2HET1[07]/USB2.PortPower/
USB_FUNC.GZO/N2HET2[14]
Output Pull Down
-
N2HET1[03]/SPI4NCS[0]/USB2.SPEED/
USB_FUNC.PUENON/N2HET2[10]
Transmit speed indication
Port suspend indication
N2HET1[09]/N2HET2[16]/USB2.SUSPEND/
USB_FUNC.SUSPENDO
GIOA[2]/USB2.TXDAT/USB_FUNC.TXDO/N2HET2[0]
NRZI encoded D-plus to
port transceiver
N2HET1[01]/SPI4NENA/USB2.TXEN\
USB_FUNC.PUENO/N2HET2[8]
Transmit enable to port
transceiver
N2HET1[22]/USB2.TXSE0/USB_FUNC.SE0O
Single-ended zero to port
transceiver
Table 2-36. ZWT USB Device Port Controller Interface (USB_FUNC)
Terminal
Signal
Type
Default
Pull State
Pull Type
Description
Signal Name
337
ZWT
N2HET1[07]/USB2.PortPower/USB_FUNC.GZO/N2HET2[14]
T1
Output Pull Down
-
Pull Up enable, allows for
software-programmable
USB device
connect/disconnect
N2HET1[01]/SPI4NENA/USB2.TXEN/USB_FUNC.PUENO/
N2HET2[8]
V2
U1
PUENO inverted
N2HET1[03]/SPI4NCS[0]/USB2.SPEED/USB_FUNC.PUENO
N/
N2HET2[10]
Copyright © 2011, Texas Instruments Incorporated
Device Package and Terminal Functions
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