ISP1563 Просмотр технического описания (PDF) - Philips Electronics

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ISP1563

Hi-Speed Universal Serial Bus PCI Host Controller

Philips Electronics 

Philips Semiconductors

ISP1563

HS USB PCI Host Controller

Table 2: Pin description…continued

Symbol [1] Pin Type Description

PWE4_N 115 O power enable for the USB downstream port 4

3.3 V output pad; 3 ns slew rate control; CMOS; open-drain

GNDA

116 -

analog ground

DM3

117 AI/O D−; analog connection for the USB downstream port 3; leave this pin

open when not in use

GNDA

118 -

analog ground

DP3

119 AI/O D+; analog connection for the USB downstream port 3; leave this pin

open when not in use

VDDA_AUX

SEL48M

120 -

121 I

auxiliary analog supply voltage; add a 100 nF decoupling capacitor

selection between 12 MHz crystal and 48 MHz oscillator:

• LOW: 12 MHz crystal is used

• HIGH: 48 MHz clock is used.

3.3 V input pad; push-pull; CMOS

SCL

122 I/O I2C-bus clock; pull-up to 3.3 V through a 10 kΩ resistor [3]

I2C-bus pad; clock signal

SDA

123 I/O

I2C-bus data; pull-up to 3.3 V through a 10 kΩ resistor [3]

I2C-bus pad; data signal

GNDA

124 -

analog ground

DM4

125 AI/O D−; analog connection for the USB downstream port 4; leave this pin

open when not in use

GNDA

126 -

analog ground

DP4

127 AI/O D+; analog connection for the USB downstream port 4; leave this pin

open when not in use

VDDA_AUX

128 -

auxiliary analog supply voltage; add a 100 nF decoupling capacitor

[1] Symbol names ending with ‘#’, for example, NAME#, represent active LOW signals for PCI pins. Symbol

names ending with underscore N, for example, NAME_N, represent active LOW signals for USB pins.

[2] If legacy support is not used, connect this pin to ground.

[3] Connect to ground if I2C-bus is not used.

9397 750 14224

Product data sheet

Rev. 01 — 14 July 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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