Philips Semiconductors

ISP1301 USB OTG Transceiver Eval Kit User’s Guide

6. Hardware description

6.1.Block diagram

Figure 6-1 shows the block diagram of the ISP1301 evaluation board.

PARALLEL

PC PARALLEL-TO-I2C

 

4-PIN I2C

 

CONVERTER

 

HEADER

 

 

 

 

 

 

 

 

AUDIO INTERFACE

 

 

 

 

(L/R SPEAKER LINE IN,

 

 

 

 

MIC PRE-AMP OUT)

 

 

INT)

 

 

ISA

PCF8584 I2C-BUS

(SCL, SDA, ADR,

 

DP, DM, ID

CONTROLLER

 

 

 

I2C-BUS

 

DP, DM, ID, VBUS

 

 

 

ISP1301

 

 

 

 

OTG TRANSCEIVER

 

 

 

 

 

BUS

 

 

 

 

V

 

 

 

 

mini-AB Receptacle

 

HC, DC and OTG CORE

 

 

 

FPGA

LOGIC INTERFACE

 

 

 

CONNECTOR

 

 

 

INTERFACE

CORE INTERFACE (OE, VP, VM, RCV,

 

 

(to the ISP1362 FPGA or

 

 

 

 

 

 

Phone FPGA)

SPEED, SUSPEND, RESET, VDD_LGC)

VBAT

POW ER MANAGER

 

 

 

 

 

 

 

ext

 

 

 

 

V

Figure 6-1: Block diagram of the ISP1301 evaluation board

6.2.Functional description

A brief description of each function module is given in the following sections.

6.2.1.PCF8584 I2C-bus controller

This block provides functions of the I2C-bus to the 8-bit parallel-bus converter. It can connect to the Philips ISP1362 or ISP1161x ISA interface board, or any other generic 8-bit microprocessor interface through a 40-wire IDE cable. The PC or other microprocessor can service the interrupt from the ISP1301 and access the registers of the ISP1301 through this interface.

6.2.2.PC parallel to I2C converter

This interface provides an alternative method to access the ISP1301 I2C interface through the PC. The PC needs to emulate software I2C master to access the ISP1301 I2C slave.

6.2.3.HC, DC and OTG core logic interface connector

This interface provides connection to a Host Controller (HC), Device Controller (DC) or On-The-Go (OTG) core logic. This interface is used during OTG system-level evaluation or during compliance testing.

UM10028_1

 

© Koninklijke Philips Electronics N.V. 2003. All rights reserved.

User’s Guide

Rev. 1.0—February 2003

12 of 18

Page 12
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Philips ISP1301 manual Hardware description, Block diagram, Functional description