Philips integrated circuits pdiusbh12 用户手册

Philips Semiconductors

Product specification

PDIUSBH12

USB 2-port hub

1999 Jul 22

3

ANALOG
   T

X

/R

X

GOODLINK



 CONTROL

ANALOG
   T

X

/R

X

    GENERAL 
       PORT
CONTROLLER

     

 HUB

REPEATER

END OF
FRAME
TIMERS

ANALOG
   T

X

/R

X

INTEGRATED 
      RAM

BIT CLOCK
RECOVERY

    MEMORY
MANAGEMENT
        UNIT

      I

2

C

   SLAVE
INTERFACE

12 MHz

FULL SPEED

INTERRUPT

SDA

SCL

   LED

D–

D+

   LED

D–

D+

DOWNSTREAM
      PORT 2

DOWNSTREAM
      PORT 3

D+

D–

UPSTREAM
     PORT

GOODLINK



 CONTROL

GOODLINK



         NO 
CONNECTION

CONNECTED      DATA 

TRANSFER

NO LIGHT

LIT

BLINKING

PLL

SV00852



D+

3.3V

1.5k

Ω

NOTE:
1. This is a conceptual block diagram and does not include each individual signal.