NXP Semiconductors
UM10858
PN7462 family HW user manual
UM10858
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2018. All rights reserved.
User manual
COMPANY PUBLIC
Rev. 1.4 — 14 May 2018
314514
314 of 345
Bit
Symbol
Access Reset
Value
Description
0100 - set frame underflow interrupt for RX
buffer 2
1000 - set frame underflow interrupt for RX
buffer 3
0000 - no effect
6
TX_FRAME_NOT_AVAI
LABLE_SET_STATUS
W
0
1 - set TX frame not available interrupt
0 - no effect
5
RX_BUFFER_NOT_A
VAILABLE_SET_STAT
US
W
0
1 - set no receive buffers available
interrupt
0 - no effect
4
EOT_SET_STATUS
W
0
1 - set EOT interrupt
0 - no effect
3:0
EOR_SET_STATUS
W
0
0001 - set EOR interrupt for RX buffer 0
0010 - set EOR interrupt for RX buffer 1
0100 - set EOR interrupt for RX buffer 2
1000 - set EOR interrupt for RX buffer 3
0000 - no effect
15. PN7462 family USB
The Universal Serial Bus (USB) is a four-wire bus that supports communication between
a host and one or more (up to 127) peripherals. The host controller allocates the USB
bandwidth to attached devices through a token-based protocol. The bus supports hot
plugging and dynamic configuration of the devices. All transactions are initiated by the
host controller.
15.1 USB features
•
Fully compliant with USB 2.0 specification (full speed)
•
Dedicated USB PLL available
•
Supports 14 physical (7 logical) endpoints including one control endpoint
•
Each non-control endpoint supports bulk, interrupt, or isochronous endpoint
types.
•
Single or double buffering allowed
•
Support wake-up from Suspend mode on USB activity and remote wake-up
•
Soft connect supported
15.2 General description
The host schedules transactions in 1 ms frames. Each frame contains a Start-Of-Frame
(SOF) marker and transactions that transfer data to or from device endpoints.
