ISP1161A1BMUM STEricsson, ISP1161A1BMUM Datasheet - Page 84

• Manufacturer Part Number: ISP1161A1BMUM
• Manufacturer: STEricsson

Specifications of ISP1161A1BMUM

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
9397 750 13961
Product data
Fig 38. Suspend and resume timing.
SUSPEND
USB BUS
WAKEUP
GOSUSP
INT_N
In
Powered-off application:
application using the ISP1161A1. The SUSPEND output switches off power to the
microcontroller and other external circuits during the suspend state. The ISP1161A1
DC is woken up through the USB bus (global resume) or by the ring detection circuit
on the telephone line.
•
•
•
•
A
Fig 39. SUSPEND and WAKEUP signals in a powered-off modem application.
Figure
A: indicates the point at which the USB bus enters the idle state.
B: indicates resume condition, which can be a 20 ms K-state on the USB bus, a
HIGH level on pin D_WAKEUP, or a LOW level on pin CS.
C: indicates remote wake-up. The ISP1161A1 will drive a K-state on the USB bus
for 10 ms after pin D_WAKEUP goes HIGH or pin CS goes LOW.
D: after detecting the suspend interrupt, set and clear bit GOSUSP in the DcMode
register.
interrupt
suspend
> 3 ms
38:
USB
Rev. 03 — 23 December 2004
V BUS
idle state
> 5 ms
1.8 ms to 2.2 ms
DP
DM
D
ISP1161A
Figure 39
V BUS
SUSPEND
WAKEUP
B
0.5 ms to 3.5 ms
shows a typical bus-powered modem
interrupt
resume
USB single-chip host and device controller
C
RING DETECTION
V CC
RST
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8031
K-state
10 ms
ISP1161A1
004aaa674
LINE
004aaa359
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