ISP1705AETTM STEricsson, ISP1705AETTM Datasheet - Page 30

• Manufacturer Part Number: ISP1705AETTM
• Manufacturer: STEricsson

Specifications of ISP1705AETTM

• Lead Free Status / RoHS Status: Compliant

Table 15.
ISP1705_2
Product data sheet
Signaling mode
General settings
3-state drivers
Power up or
V
Host settings
Host chirp
Host high-speed
Host full-speed
Host high-speed or
full-speed suspend
Host high-speed or
full-speed resume
Host low-speed
Host low-speed
suspend
Host low-speed
resume
Host Test J or Test K 00b
Peripheral settings
Peripheral chirp
Peripheral high
speed
Peripheral full speed 01b
BUS
< V
B_SESS_END
Operating states and their corresponding resistor settings
9.3 USB state transitions
Register settings
XCVR
SELECT
[1:0]
XXb
01b
00b
00b
X1b
01b
01b
10b
10b
10b
00b
00b
A Hi-Speed USB peripheral, host or OTG device handles more than one electrical state as
defined in Universal Serial Bus Specification Rev. 2.0 and On-The-Go Supplement to the
USB 2.0 Specification Rev. 1.3. The ISP1705 accommodates various states through
register settings of the XCVRSELECT[1:0], TERMSELECT, OPMODE[1:0],
DP_PULLDOWN and DM_PULLDOWN bits.
Table 15
force resistor settings as also given in
follows:
It is up to the link to set the desired register settings.
•
•
•
•
RPU_DP_EN enables the 1.5 k
RPD_DP_EN enables the 15 k
RPD_DM_EN enables the 15 k
HSTERM_EN enables the 45
summarizes operating states. The values of register settings in
TERM
SELECT
Xb
0b
0b
0b
1b
1b
1b
1b
1b
1b
0b
1b
0b
1b
OPMODE
[1:0]
01b
00b
10b
00b
00b
00b
10b
00b
00b
10b
10b
10b
00b
00b
Rev. 02 — 21 January 2009
DP_
PULL
DOWN
Xb
1b
1b
1b
1b
1b
1b
1b
1b
1b
1b
0b
0b
0b
termination resistors on DP and DM
pull-down resistor on DP
pull-down resistor on DM
pull-up resistor on DP
Table
DM_
PULL
DOWN
Xb
1b
1b
1b
1b
1b
1b
1b
1b
1b
1b
0b
0b
0b
15. Resistor setting signals are defined as
Internal resistor settings
RPU_
DP_EN
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
1b
0b
1b
ULPI Hi-Speed USB transceiver
RPD_
DP_EN
0b
1b
1b
1b
1b
1b
1b
1b
1b
1b
1b
0b
0b
0b
© ST-NXP Wireless 2009. All rights reserved.
RPD_
DM_EN
0b
1b
1b
1b
1b
1b
1b
1b
1b
1b
1b
0b
0b
0b
ISP1705
Table 15
HSTERM_
EN
0b
0b
1b
1b
0b
0b
0b
0b
0b
0b
1b
0b
1b
0b
will
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