Datasheet

Table Of Contents
RM46L852
SPNS185C SEPTEMBER 2012 REVISED JUNE 2015
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4.3.2.14 USB Host and Device Port Controller Interface
The USB Host Controller includes a root hub with two ports. USB1 pin are for Root Hub Port 0. USB2 pins
are for Root Hub Port 1.
Table 4-40. ZWT USB Host Port Controller Interface (USB1, USB2)
Terminal Signal Reset Pull Pull Type Description
Type State
Signal Name 337
ZWT
N2HET1[8]/MIBSPI1SIMO[1]/MII_TXD[3]/ E18 Input Pulldown Fixed 20 µA Active low input, asserted
USB1.OVERCURRENT Pullup during overcurrent
condition from USB power
switch
MIBSPI1NCS[0]/MIBSPI1SOMI[1]/MII_TXD[2]/ R2 Pullup Fixed 20 µA USB Receive Data,
USB1.RCV/ECAP6 Pullup converted from differential
(D+/D- to single ended by
transceiver).
MIBSPI5NENA/MII_RXD[3]/USB1.VM/MIBSPI5SOMI[1]/ H18 Single-ended D– Input,
ECAP5 driven by transceiver
MIBSPI1NENA/N2HET1[23]/MII_RXD[2]/ G19 Single-ended D+ Input,
USB1.VP/ECAP4 driven by transceiver
GIOB[1]/USB1.PORTPOWER K2 Output Pulldown None Active-high output enable
for controlling an external
USB power switch
N2HET1[30]/MII_RX_DV/USB1.SPEED/EQEP2S B11 Transmit speed to USB
port transceiver.
0 = Low Speed
1 = Full Speed
MIBSPI1NCS[1]/N2HET1[17]/MII_COL/ F3 Pullup None This signal indicates the
USB1.SUSPEND/EQEP1S state of the port, active or
suspend.
0 = Active
1 = Suspend
GIOB[0]/USB1.TXDAT M2 Pulldown None Single-Ended USB Data
Output to USB
Transceiver. Use in
combination with
USB1.TXSE0
N2HET1[10]/MII_TXCLK/USB1.TXEN/ D19 Active-low output transmit
MII_TX_VCLKA4/nTZ3 enable to port transceiver
N2HET1[14]/USB1.TXSE0 A11 Active High Output
Instructs Transceiver to
transmit single-ended zero
N2HET1[11]/MIBSPI3NCS[4]/N2HET2[18]/ E3 Input Pulldown Fixed 20 µA Active-low input, asserted
USB2.OVERCURRENT/USB_FUNC.VBUSI/EPWM1SYNCO Pullup during overcurrent
condition from USB power
switch
GIOB[3]/USB2.RCV/USB_FUNC.RXDI W10 Pulldown Fixed 20 µA Receive data from USB
Pullup port transceiver. This
signal is generated from
D+, D– differential lines of
the USB cable.
GIOA[1]/USB2.VM/USB_FUNC.RXDMI C2 Single-ended D– Input,
driven by transceiver
GIOA[0]/USB2.VP/USB_FUNC.RXDPI A5 Single-ended D+ Input,
driven by transceiver.
40 Terminal Configuration and Functions Copyright © 2012–2015, Texas Instruments Incorporated
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