參數(shù)資料
型號(hào): ISP1582
廠商: NXP Semiconductors N.V.
英文描述: Hi-Speed Universal Serial Bus peripheral controller
中文描述: 高速通用串行總線外設(shè)控制器
文件頁(yè)數(shù): 20/66頁(yè)
文件大小: 325K
代理商: ISP1582
Philips Semiconductors
ISP1582
Hi-Speed USB peripheral controller
Preliminary data
Rev. 03 — 25 August 2004
20 of 66
9397 750 13699
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8.14.2
Self-powered mode
In self-powered mode, V
CC
and V
CC(I/O)
are supplied by the system. Bit SOFTCT in
the Mode register must be always logic 1. See
Figure 14
.
[1]
When the USB cable is removed, SoftConnect is disabled.
Fig 14. Self-powered mode.
Table 9:
ISP1582 operation
Operation truth table for SoftConnect
Power supply
V
CC(I/O)
Bit SOFTCT in
Mode register
V
CC
RPU
(3.3 V)
3.3 V
3.3 V
V
BUS
Normal bus operation
No pull-up on DP
3.3 V
3.3 V
3.3 V
3.3 V
5 V
0 V
[1]
enabled
disabled
Table 10:
ISP1582 operation
Operation truth table for clock off during suspend
Power supply
V
CC(I/O)
Clock off
during
suspend
V
CC
RPU
(3.3 V)
3.3 V
V
BUS
Clock will wake up:
After resume and
After a bus reset
Clock will wake up:
After detecting the presence of V
BUS
3.3 V
3.3 V
5 V
enabled
3.3 V
3.3 V
3.3 V
0 V => 5 V enabled
Table 11:
ISP1582 operation
Operation truth table for back voltage compliance
Power supply
V
CC(I/O)
Bit SOFTCT
in Mode
register
V
CC
RPU
(3.3 V)
3.3 V
V
BUS
Back voltage is not measured in this
mode
Back voltage is not an issue because
pull-up on DP will not be present when
V
BUS
is not present
3.3 V
3.3 V
5 V
enabled
3.3 V
3.3 V
3.3 V
0 V
disabled
004aaa460
ISP1582
+
USB
1 M
VCC
VCC(I/O)
VBUS
RPU
VBUS
1.5 k
1 μF
+
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