Philips Semiconductors
ISP1561
USB PCI host controller
Pin description
…continued
Pin
106
Type
I/O
Description
power enable for the USB downstream port 3 (open-drain).
Bi-directional pin; push-pull input; three-state output; 10 ns
slew rate control; TTL; 5 V tolerant
analog connection for the external resistor (12 kΩ
±
1%)
analog auxiliary voltage (3.3 V); supply voltage
D−; analog connection for the USB downstream port 2
D+; analog connection for the USB downstream port 2
analog ground
GoodLink LED indicator output for the USB downstream
port 3 (open-drain). The LED is OFF by default, blinks ON
upon USB traffic. Bi-directional pin; push-pull input;
three-state output; 10 ns slew rate control; TTL; 5 V
tolerant
amber LED indicator output for the USB downstream port 3
(open-drain). The LED is OFF by default; the LED can be
programmed to enable it to blink. Bi-directional pin;
push-pull input; three-state output; 10 ns slew rate control;
TTL; 5 V tolerant
green LED indicator output for the USB downstream port 3
(open-drain); the LED is OFF by default; the LED can be
programmed to enable it to blink. Bi-directional pin;
push-pull input; three-state output; 10 ns slew rate control;
TTL; 5 V tolerant
analog auxiliary voltage (3.3 V); supply voltage
D−; analog connection for the USB downstream port 3
D+; analog connection for the USB downstream port 3
analog ground
overcurrent sense input for the USB downstream port 4
(digital) push-pull; TTL with hysteresis; 5 V tolerant
power enable for the USB downstream port 4 (open-drain).
Bi-directional pin; push-pull input; three-state output; 10 ns
slew rate control; TTL; 5 V tolerant
analog auxiliary voltage (3.3 V); supply voltage
D−; analog connection for the USB downstream port 4
D+; analog connection for the USB downstream port 4
analog ground
GoodLink LED indicator output for the USB downstream
port 4 (open-drain). The LED is OFF by default, blinks ON
upon USB traffic. Bi-directional pin; push-pull input;
three-state output; 10 ns slew rate control; TTL; 5 V
tolerant
Table 2:
Symbol
[1]
PWE3
RREF
AV
AUX
DM2
DP2
AGND
GL3
107
108
109
110
111
112
AI/O
-
AI/O
AI/O
-
I/O
AMB3
113
I/O
GRN3
114
I/O
AV
AUX
DM3
DP3
AGND
OC4
PWE4
115
116
117
118
119
120
-
AI/O
AI/O
-
I
I/O
AV
AUX
DM4
DP4
AGND
GL4
121
122
123
124
125
-
AI/O
AI/O
-
I/O
9397 750 10015
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 01 — 06 February 2003
11 of 102
PHILIPS [ NXP SEMICONDUCTORS ]
