Datasheet

30
29
4
26
6
5
Hub Repeater
Suspend/Resume
Logic and
Frame Timer
SIE
SIE Interface
Logic
Port 1
Logic
Hub /Device
Command
Decoder
Hub
Power
Logic
OVRCUR1 - OVRCUR3
PWRON1 - PWRON3
XTAL1/CLK48
OSC/PLL
DP0 DM0
1 2
USB
Transceiver
DP1 DM1
12 11
10, 14, 18
9, 13, 17
RESET
USB
Transceiver
XTAL2
Serial
EEPROM
Interface
EXTMEM
EEDATA/GANGED
EECLK
DP2 DM2DP3 DM3
USB
Transceiver
16 15
USB
Transceiver
20 19
Port 2
Logic
Port 3
Logic
8
BUSPWR
32
SUSPND
27
31
MODE
24
NP3
23, 22
NPINT(1- 0)
21
OCPROT
/PWRSW
DP0PUR
M
U
X
1
0
TUSB2036
www.ti.com SLLS372F –MARCH 2000–REVISED SEPTEMBER 2013
Table 1. System Port Configuration
HUB DESCRIPTOR
NPINT1-0 PORT AVAILABILITY DEVICE REMOVABLE FIELD
(7−0)
00 All ports are available through external USB connectors 00000000
01 Port 1 has a permanently attached device; ports 2 and 3 are externally available 00000010
10 Ports 1 and 2 have permanently attached devices; port 3 is externally available 00000110
NP3 high: 00000110
11 All ports have permanently attached devices
NP3 low: 00001110
HUB DESCRIPTOR WITH HUB
NPINT1-0 COMPOUND DEVICE OR NOT
CHARACTERISTICS FIELD BIT 2
00 Hub is not part of a compound device 0
01, 10, 11 Hub is part of a compound device 1
FUNCTIONAL BLOCK DIAGRAM
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