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CX11627-11

AccessRunner™ ADSL-USB Modem Device Set

Conexant Systems 

AccessRunner ADSL-USB Modem Device Set Data Sheet

Label

USBP,

USBN

FCLKIO (GPIO39)

USB5V_DET

(GPIO22)

CLKI

HRST#

BOPT (GPIO14)

PLLBP

AFE_SCLK

AFE_STB

AFE_CTRLIN

AFE_CTRLOUT

AFE_WAKEUP

HAD[18:16]

HC[07:01]

HAD[15:0]

HC08

HC09

HC12 (GPIO34)

IRQ0#

(GPIO10)

IRQ1#

(GPIO11)

PD

(GPIO12)

RST#

(GPIO09)

SCANMODE

(GPIO26)

Pin

151,

152

29

150

27

98

39

28

4

7

10

5

6

53-55

56, 59-64

65, 70, 73-80,

83-88

96

95

89

163

164

165

162

153

Table 3-1. P5200 UIC Hardware Signal Definitions

I/O

I/O Type

Signal Name/Description

USB INTERFACE

I/O

Iu/Ou

USB Port. USBP and USBN are the differential data positive and

negative signals of the USB port. Connect USBP and USBN to USB

+Data and -Data, respectively, through 10 Ω, and optionally through a

quick switch in order to isolate the USBP and USBN from the USB

during suspend mode.

I

It

USB Resume. Active high input used to detect occurrence of USB

resume event.

USB POWER DETECT INTERFACE

I

It

USB 5 V Detect. Active high input used to detect presence of +5 V at

the USB connector.

CLOCK INTERFACE

I

Ith

Clock In. Connect to 35.328 MHz voltage controlled crystal oscillator

(VCXO) output through 51 Ω.

CONTROL INTERFACE

I

Ith

Reset. Active low input signal to reset the P5200 UIC. Connect to

reset circuit.

I

It

Boot Option. To boot from internal ROM, leave open. To boot from

external ROM, pull down with 4.7k Ω resistor. Leave open.

I

It

PLL Ground. Connect to GND through 4.7 kΩ.

CX20431 AFE CONTROL AND SERIAL INTERFACE

I

It

AFE Clock In. Connect to AFE STROBE through 33 Ω.

O

Otts4

AFE Strobe Out. Connect to AFE CTRL_STRB.

O

Otts4

AFE Control In. Serial digital data sent to the AFE. Connect to AFE

CTRL_IN.

I

It

AFE Control Out. Serial digital data received from the AFE. Connect

to AFE CTRL_OUT.

I

Ith

AFE Wakeup. DSL Power Management Wakeup Signal from AFE.

Connect to AFE WAKEUP.

CX11627 ADDP PARALLEL INTERFACE

O

Ot4

Address Lines 9-7. Connect to ADDP A[9:7], respectively.

O

Ot4

Address Lines 6-0. Connect to ADDP A[6:0], respectively.

I/O

It/Ot4

Data Lines 15-00. Connect to ADDP D[15:0], respectively.

O

Ot4

O

Ot4

O

O

I

Itpu

I

Itpu

O

Ot4

O

Ot4

O

Ot4

Read Enable. Active low read enable. When asserted, data is

transferred from the selected device onto the data bus. Connect to

ADDP RDB.

Write Enable. Active low write enable. When asserted, data is

transferred from the data bus into the selected device. Connect to

ADDP WRB.

ADDP Chip Select. Active low output select ADDP when asserted.

Connect to ADDP CSB.

ADDP Interrupt Request 1. Active low input asserted to request

interrupt servicing by the ADDP. Connect to ADDP IRQ1.

ADDP Interrupt Request 2. Active low input asserted to request

interrupt servicing by the ADDP. Connect to ADDP IRQ2.

ADDP Power Down. Active low output asserted put ADDP in a low

power mode. Connect to ADDP PWR_DWN.

ADDP Reset. Active low output resets ADDP when asserted. Connect

to ADDP RSTB.

Scan Mode. Connect to ADDP SSCANMODE.

3-4

Conexant

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