Philips Semiconductors
ISP1122A
USB stand-alone hub
5.2 ISP1122ABD (LQFP32)
5.2.1
Pinning
30 PSW2/GL2
29 Vreg(3.3)
handbook, full pagewidth
28 PSW1/GL1
31 GND
32 DM3
26 DM2
27 DP2
25 DP0
DP3 1
VCC 2
OC1 3
OC2 4
24 DM0
23 DP1
22 DM1
21 DP5
ISP1122ABD
OC3 5
OC4 6
OC5/GOC 7
DM4 8
20 DM5
19 INDV/SDA
18 OPTION/SCL
17 RESET
SP/BP 10
HUBGL 11
PSW3/GL3 12
PSW4/GL4 13
PSW5/GL5/GPSW 14
XTAL1 15
XTAL2 16
9
MBL165
Fig 4. Pin configuration LQFP32.
5.2.2
Pin description
Table 3:
V
reg(3.3)
[2]
PSW2/GL2
[3]
Pin description for LQFP32
Pin
29
30
Type
-
O
Description
regulated supply voltage (3.3 V
±
10%) from internal
regulator; used to connect pull-up resistor on DP0 line
modes 4 to 6:
power switch control output for downstream
port 2 (open-drain, 6 mA)
modes 0 to 3, 7:
GoodLink LED indicator output for
downstream port 2 (open-drain, 6 mA); to connect an LED
use a 330
Ω
series resistor
GND
DM3
DP3
V
CC
OC1
OC2
OC3
OC4
31
32
1
2
3
4
5
6
-
AI/O
AI/O
-
AI/I
AI/I
AI/I
AI/I
ground supply
downstream port 3 D− connection (analog)
[4]
downstream port 3 D+ connection (analog)
[4]
supply voltage; connect to USB supply V
BUS
(bus-powered or
hybrid-powered) or to local supply V
DD
(self-powered)
overcurrent sense input for downstream port 1 (analog
[5]
)
overcurrent sense input for downstream port 2 (analog
[5]
)
overcurrent sense input for downstream port 3 (analog
[5]
)
overcurrent sense input for downstream port 4 (analog
[5]
)
© Philips Electronics N.V. 2000. All rights reserved.
Symbol
[1]
9397 750 06986
Preliminary specification
DP4
Rev. 01 — 27 March 2000
6 of 48
PHILIPS [ NXP SEMICONDUCTORS ]
