ISP1705AETTM STEricsson, ISP1705AETTM Datasheet - Page 55

• Manufacturer Part Number: ISP1705AETTM
• Manufacturer: STEricsson

Specifications of ISP1705AETTM

• Lead Free Status / RoHS Status: Compliant

Table 31.
ISP1705_2
Product data sheet
Bit
4 to 3
2
1 to 0
Symbol
OPMODE[1:0]
TERMSELECT
XCVRSELECT[1:0]
FUNC_CTRL - Function control register (address R = 04h to 06h, W = 04h, S = 05h, C = 06h) bit
description
…continued
Description
Operation mode: Selects the required bit-encoding style during transmit.
00b — Normal operation
01b — Non-driving
10b — Disable bit-stuffing and NRZI encoding
11b — Do not automatically add SYNC and EOP when transmitting; must be used only for
high-speed packets
Termination select: Controls the internal 1.5 k full-speed pull-up resistor and 45
high-speed terminations. Control over bus resistors changes, depending on
XCVRSELECT[1:0], OPMODE[1:0], DP_PULLDOWN and DM_PULLDOWN, as shown in
Table
Transceiver select: Selects the required transceiver speed.
00b — Enable the high-speed transceiver
01b — Enable the full-speed transceiver
10b — Enable the low-speed transceiver
11b — Enable the full-speed transceiver for low-speed packets (full-speed preamble is
automatically prefixed)
15.
Rev. 02 — 21 January 2009
ULPI Hi-Speed USB transceiver
© ST-NXP Wireless 2009. All rights reserved.
ISP1705
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