Philips Semiconductors
ISP1561
USB PCI host controller
Pin description
…continued
Pin
90
Type
I/O
Description
power enable for the USB downstream port 1 (open-drain).
Bi-directional pin; push-pull input; three-state output; 10 ns
slew rate control; TTL; 5 V tolerant
GoodLink LED indicator output for the USB downstream
port 1 (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 1
(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
reference ground; RREF resistor must be connected to this
pin
green LED indicator output for the USB downstream port 1
(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
overcurrent sense input for the USB downstream port 2
(digital). Push-pull; TTL with hysteresis; 5 V tolerant
power enable for the USB downstream port 2 (open-drain).
Bi-directional pin; push-pull input; three-state output; 10 ns
slew rate control; TTL; 5 V tolerant
GoodLink LED indicator output for the USB downstream
port 2 (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 2
(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 2
(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 for PLL
D−; analog connection for the USB downstream port 1
D+; analog connection for the USB downstream port 1
analog ground
overcurrent sense input for the USB downstream port 3
(digital). Push-pull; TTL with hysteresis; 5 V tolerant
Table 2:
Symbol
[1]
PWE1
GL1
91
I/O
AMB1
92
I/O
AV
AUX
GND_RREF
GRN1
93
94
95
-
-
I/O
OC2
PWE2
96
97
I
I/O
GL2
98
I/O
AMB2
99
I/O
GRN2
100
I/O
AV
AUX_PLL
DM1
DP1
AGND
OC3
101
102
103
104
105
-
AI/O
AI/O
-
I
9397 750 10015
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 01 — 06 February 2003
10 of 102
PHILIPS [ NXP SEMICONDUCTORS ]
