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USB2504 数据表(PDF) 24 Page - Microchip Technology

部件名 USB2504
功能描述  Integrated USB 2.0 Compatible 4-Port Hub
PDF  42 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB2504 数据表(HTML) 24 Page - Microchip Technology

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USB2504/USB2504A
DS000002250A-page 24
 2007 - 2016 Microchip Technology Inc.
5.3.9.10
Register 09h: Non-Removable Device (Reset = 0x00)
5.3.9.11
Register 0Ah: Port Disable For Self Powered Operation (Reset = 0x00)
5.3.9.12
Register 0Bh: Port Disable For Bus Powered Operation (Reset = 0x00)
5:4
OC_TIMER
OverCurrent Timer: Over Current Timer delay.
00 = 0.1ms
01 = 2ms
10 = 4ms
11 = 6ms
3
COMPOUND
Compound Device: Designates if Hub is part of a compound device.
0 = No.
1 = Yes, Hub is part of a compound device.
2:0
Reserved
Reserved
Bit Number
Bit Name
Description
7:0
NR_DEVICE
Non-Removable Device: Indicates which port(s) include non-removable devic-
es. ‘0’ = port is removable, ‘1’ = port is non-removable.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= 1; Port 4 non-removable.
Bit 3= 1; Port 3 non-removable.
Bit 2= 1; Port 2 non-removable.
Bit 1= 1; Port 1 non removable.
Bit 0 is Reserved, always = ‘0’.
Bit Number
Bit Name
Description
7:0
PORT_DIS_SP
Port Disable Self-Powered: Disables 1 or more contiguous ports. ‘0’ = port is
available, ‘1’ = port is disabled.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= 1; Port 4 is disabled.
Bit 3= 1; Port 3 is disabled.
Bit 2= 1; Port 2 is disabled.
Bit 1= 1; Port 1 is disabled.
Bit 0 is Reserved, always = ‘0’
Bit Number
Bit Name
Description
7:0
PORT_DIS_BP
Port Disable Bus-Powered: Disables 1 or more contiguous ports. ‘0’ = port is
available, ‘1’ = port is disabled.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= 1; Port 4 is disabled.
Bit 3= 1; Port 3 is disabled.
Bit 2= 1; Port 2 is disabled.
Bit 1= 1; Port 1 is disabled.
Bit 0 is Reserved, always = ‘0’
Bit Number
Bit Name
Description



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