ISP1521 Просмотр технического описания (PDF) - Philips Electronics

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ISP1521

Hi-Speed Universal Serial Bus hub controller

Philips Electronics 

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VCC1

VCC2

VCC3

VCC4

11, 50

17, 56

30, 70

13, 52

PHILIPS PIE

TRANSACTION

TRANSLATOR

RPU

RREF

upstream port 0

DM0

DP0

5

7

3

4

ANALOG TRANSCEIVER

• ORIGINAL USB

• HI-SPEED USB

GND

2, 6, 8,

12, 14,

18, 29,

44, 47,

51, 53,

57, 71

MINI-HOST

CONTROLLER

VREF(5V0)

31, 69

PORT 1

ANALOG

TRANSCEIVER

• ORIGINAL USB

• HI-SPEED USB

POWER

SWITCH

OVERCURRENT

DETECTION

LINK LEDS

19

DM1

20

23 24 72 73

DP1

PSW1_N AMB1_N

OC1_N GRN1_N

downstream

port 1

HUB REPEATER

• ORIGINAL USB

• HI-SPEED USB

ROUTING LOGIC

PORT 2 to 6

downstream

port 2 to port 6

Fig 1. Block diagram.

12 MHz

XTAL1

42

XTAL2

43

PLL

BIT CLOCK

RECOVERY

PHILIPS SIE

ISP1521

RAM

ROM

I2C-bus

80

I2C-BUS

CONTROLLER 79

SDA

SCL

40

HUB

CONTROLLER 78

1

RESET_N

HUBGL_N

SUSPEND

41

PORT

CONTROLLER 60

ADOC

NOOC

PORT 7

ANALOG

TRANSCEIVER

• ORIGINAL USB

• HI-SPEED USB

POWER

SWITCH

OVERCURRENT

DETECTION

LINK LEDS

48

DM7

49

36 37 65 66

DP7

PSW7_N AMB7_N

OC7_N GRN7_N

downstream

port 7

MLD710

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