ISP1302HN datasheet(11/64 Pages) NXP

Part #	ISP1302HN

Description	Universal Serial Bus On-The-Go transceiver with carkit support

Download	64 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

11 / 64 page

ISP1302_1

Product data sheet

Rev. 01 — 24 May 2007

10 of 63

NXP Semiconductors

ISP1302

USB OTG transceiver with carkit support

7.5 Pull-up and pull-down resistors

Figure 6 shows the switchable pull-up and pull-down resistors that are internally

connected to the DP and DM lines. The DP pull-up resistor (SW1) is controlled by

bit DP_PULLUP of the OTG Control register.

The pull-up resistor is context variable as described in document

ECN_27%_Resistor.

The pull-up resistor value depends on the USB bus condition:

• When the bus is idle, the resistor is 900

Ω to 1575 Ω (SW2 = on).

• When the bus is transmitting or receiving, the resistor is 1425

Ω to 3090 Ω

(SW2 = off).

DP also implements a weak pull-up resistor (RweakUP(DP)) that is controlled using

bit DP_WKPU_EN of the Misc Control register.

The DP pull-down resistor (RDN(DP)) is connected to the DP line, if bit DP_PULLDOWN in

the OTG Control register is set.

The DM pull-down resistor (RDN(DM)) is connected to the DM line, if bit DM_PULLDOWN in

the OTG Control register is set.

Table 4.

ID pull-down control

ID_PULLDN PH_ID_ACK PH_ID_INT

Switch between ID and ground

000

off

0

1

on for time tPH_ID_INT, then off and bit PH_ID_INT

autoclears to 0

0

1

0

wait for time tPH_ID_WT, turn on the switch for tPH_ID_INT,

then off and bit PH_ID_ACK autoclears to 0

0

1

not deﬁned

1X

X

on

Similar Part No. - ISP1302HN

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	ISP1301	245Kb / 46P	Universal Serial Bus On-The-Go transceiver Rev. 01-14 April 2004
NXP Semiconductors	ISP1301BS	245Kb / 46P	Universal Serial Bus On-The-Go transceiver Rev. 01-14 April 2004

More results

Similar Description - ISP1302HN

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	ISP1109	295Kb / 59P	Universal Serial Bus transceiver with carkit support Rev. 01-14 July 2005
	ISP1301	245Kb / 46P	Universal Serial Bus On-The-Go transceiver Rev. 01-14 April 2004
	ISP1506A	400Kb / 79P	ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver Rev. 01 - 30 May 2007
	SAF1508BET	462Kb / 87P	ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver Rev. 2-23 July 2012
	ISP1504A	414Kb / 84P	ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver Rev. 01-19 October 2006
	ISP1504A1	428Kb / 81P	ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver Rev. 01-6 August 2007
	ISP1507ABS	424Kb / 81P	ULPI Hi-Speed Universal Serial Bus On-The-Go transceiver Rev. 01-19 May 2008
	ISP1362	647Kb / 150P	Single-chip Universal Serial Bus On-The-Go controller Rev. 03-06 January 2004
	ISP1761BEUM	793Kb / 164P	Hi-Speed Universal Serial Bus On-The-Go controller 13 March 2008
	ISP1761	724Kb / 158P	Hi-Speed Universal Serial Bus On-The-Go controller Rev. 01-12 January 2005

More results

ISP1302HN Datasheet(PDF) 11 Page - NXP Semiconductors

ISP1302HN Datasheet(HTML) 11 Page - NXP Semiconductors

Similar Part No. - ISP1302HN

Similar Description - ISP1302HN

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

Datasheet Download

Link URL