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UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
506 of 1269
NXP Semiconductors
UM10503
Chapter 23: LPC43xx USB0 Host/Device/OTG controller
23.5 Pin description
3
7
Interrupt/Bulk/Isochronous
In
4
8
Interrupt/Bulk/Isochronous
Out
4
9
Interrupt/Bulk/Isochronous
In
5
10
Interrupt/Bulk/Isochronous
Out
5
11
Interrupt/Bulk/Isochronous
In
Table 390. USB Packet size
Endpoint type
Speed
Packet size (byte)
Control
Low-speed
8
Full-speed
8, 16, 32, or 64
High-speed
64
Isochronous
Low-speed
n/a
Full-speed
up to 1023
High-speed
up to 1024
Interrupt
Low-speed
up to 8
Full-speed
up to 64
High-speed
up to 1024
Bulk
Low-speed
n/a
Full-speed
8, 16, 32, or 64
High-speed
8, 16, 32, 64, or 512
Table 389. Fixed endpoint configuration
Logical
endpoint
Physical
endpoint
Endpoint type
Direction
Table 391. USB0 pin description
Pin function
Direction
Description
USB0_IND0
O
Port indicator LED control output.
USB0_IND1
O
Port indicator LED control output.
USB0_PWR_FAULT
I
Port power fault signal indicating overcurrent condition; this signal monitors
over-current on the USB bus (external circuitry required to detect over-current
condition).
USB0_PPWR
O
VBUS drive signal (towards external charge pump or power management unit);
indicates that VBUS must be driven (active HIGH).
Add a pull-down resistor to disable the power switch at reset. This signal has
opposite polarity compared to the USB_PPWR used on other NXP LPC parts.
USB0_DP
I/O
USB0 bidirectional D+ line. The D+ line has an internal 1.5 k
pull-up. This pull-up is
enabled when software sets the RS bit (Bit 0) in the USBCMD register and the USB0
controller sees a valid VBUS voltage level (above ~1.8V) on the VBUS pin. Do not
add an external series resistor.
USB0_DM
I/O
USB0 bidirectional D
line. The D- line has an internal 1.5 k
pull-up. This pull-up is
enabled when software sets RS bit (BIT_0) in the USBCMD register and the USB0
controller sees a valid VBUS voltage level (above ~1.8V) on the VBUS pin. Do not
add an external series resistor.