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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data Rev. 03 — 24 November 2004 4 of 53
6. Block diagram
Fig 1. Block diagram.
MLD710
I
2
C-BUS
CONTROLLER
POWER
SWITCH
OVERCURRENT
DETECTION
LINK LEDS LINK LEDS
BIT CLOCK
RECOVERY
PLL
ANALOG
TRANSCEIVER
• ORIGINAL USB
• HI-SPEED USB
ROUTING LOGIC
PHILIPS PIE
PHILIPS SIE
PORT
CONTROLLER
HUB
CONTROLLER
RAM
ROM
MINI-HOST
CONTROLLER
HUB REPEATER
• ORIGINAL USB
• HI-SPEED USB
ANALOG TRANSCEIVER
• ORIGINAL USB
• HI-SPEED USB
TRANSACTION
TRANSLATOR
V
CC1
RPU DM0 DP0
SDA
ADOC
NOOC
SUSPEND
SCL
I
2
C-bus
12 MHz
upstream port 0
XTAL1 XTAL2
RREF
V
CC2
V
CC3
V
CC4
V
REF(5V0)
POWER
SWITCH
OVERCURRENT
DETECTION
ANALOG
TRANSCEIVER
• ORIGINAL USB
• HI-SPEED USB
downstream
port 1
downstream
port 2 to port 6
downstream
port 7
DM7
DM1 DP1
OC1_N
PSW1_N
GRN1_N
AMB1_N
DP7
ISP1521
OC7_N
PSW7_N
GRN7_N
AMB7_N
19 20 23 24 72 73 48 49 36 37 65 66
1
60
41
79
80
43424375
11, 50
17, 56
30, 70
13, 52
31, 69
GND
2, 6, 8,
12, 14,
18, 29,
44, 47,
51, 53,
57, 71
RESET_N
HUBGL_N
78
40
PORT 1 PORT 2 to 6 PORT 7