12 | Keysight | Serial Bus Options for InfiniiVision X-Series Oscilloscopes - Data Sheet

Specifications/Characteristics (Continued)

USB 2.0 high-speed specifications/characteristics (DSOX4USBH and DSOX6USBH)

USB differential input source

Analog channels 1, 2, 3, 4 (using a differential active probe)

Speed

High (480 Mb/s)

Triggering

Token packet with specified content

Data packet with specified content

Handshake packet with specified content

Special packet with specified content

All errors – any of the below error conditions

PID error – if packet type field does not match check field

CRC5 error – if 5 bit CRC error is detected

CRC16 error – if 16 bit CRC error is detected

Glitch error – if two transitions occur in half a bit time

Hardware-based decode

Base format

Hex, Binary, ASCII, or Decimal data decode

Token packets (excluding SOF, 3 bytes)

PID (yellow, “OUT”, “IN”, “SETUP”, “PING”)

PID check (yellow when valid, red when error detected) – numeric value

Address (blue, 7 bits)

Endpoint (green, 4 bits)

CRC (blue when valid, red when error detected, 5 bits)

Token packets (SOF, 3 bytes)

PID (yellow, “SOF”)

PID check (yellow when valid, red when error detected, 5 bits)

Data packets (3 to 1027 bytes)

Frame (green, 11-bits) – the frame number

CRC (blue when valid, red when error detected, 5 bits)

PID (yellow, “DATA0”, “DATA1”, DATA2”, “MDATA”)

PID check (yellow when valid, red when error detected, 16 bits)

Handshake packets (1 byte)

PID (yellow, “ACK”, “NAK”, “STALL”, “NYET”, “PRE”, “ERR”)

PID check (yellow when valid, read when error detected) – numeric value

Hub Addr (green, 7 bits)

SC (blue, 1 bit)

Port (green, 7 bits)

S & E|U (blue, 2 bits)

ET (green, 2 bits)

CRC (blue when valid, red when error detected, 5 bits

Multi-bus analysis

N/A