ISP1520 Просмотр технического описания (PDF) - Philips Electronics

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ISP1520

Hi-Speed Universal Serial Bus hub controller

Philips Electronics 

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RPU

RREF

upstream port 0

DM0

DP0

5

7

3

4

VCC1

VCC2

VCC3

VCC4

9, 39

13, 45

23, 57

11, 41

TEST_HIGH

8, 12,

18, 38

TEST_HIGH

GND

17

2, 6, 10,

14, 21,

22, 35,

40, 42,

46, 58,

59

PHILIPS PIE

TRANSACTION

TRANSLATOR

MINI-HOST

CONTROLLER

VREF(5V0)

24, 56

PORT 1

ANALOG

TRANSCEIVER

• ORIGINAL USB

• HI-SPEED USB

POWER

SWITCH

OVERCURRENT

DETECTION

LINK LEDS

ANALOG TRANSCEIVER

• ORIGINAL USB

• HI-SPEED USB

HUB REPEATER

• ORIGINAL USB

• HI-SPEED USB

ROUTING LOGIC

PORT 2 to 3

12 MHz

XTAL1

33

XTAL2

34

PLL

BIT CLOCK

RECOVERY

PHILIPS SIE

ISP1520

RAM

ROM

I2C-bus

64

I2C-BUS

CONTROLLER 63

SDA

SCL

31

HUB

CONTROLLER 62

1

RESET_N

HUBGL_N

SUSPEND

32

PORT

CONTROLLER 49

ADOC

NOOC

PORT 4

ANALOG

TRANSCEIVER

• ORIGINAL USB

• HI-SPEED USB

POWER

SWITCH

OVERCURRENT

DETECTION

LINK LEDS

15

DM1

Fig 1. Block diagram.

16

19 20 60 61

DP1

PSW1_N AMB1_N

OC1_N GRN1_N

downstream

port 1

downstream

port 2 to port 3

47

DM4

48

25 26 50 51

DP4

PSW4_N AMB4_N

OC4_N GRN4_N

downstream

port 4

004aaa169

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