參數(shù)資料
型號： TUSB3410VF
英文描述： BUS CONTROLLER
中文描述： 總線控制器
文件頁數(shù)： 36/92頁
文件大?。?/td> 317K
代理商： TUSB3410VF
5
–
4
5.1.5
MODECNFG: Mode Configuration Register
(Addr:FFFB)
This register is cleared by the power-up reset signal only. The USB reset cannot reset this register.
7
6
5
4
3
2
1
0
RSV
R/O
RSV
R/O
RSV
R/O
RSV
R/O
CLKSLCT
R/W
CLKOUTEN
R/W
SOFTSW
R/W
TXCNTL
R/W
BIT
0
NAME
RESET
0
FUNCTION
TXCNTL
Transmit output control: Hardware or firmware switching select for 3-state serial output buffer.
TXCNTL = 0
TXCNTL = 1
Firmware toggle switching is selected
Soft switch: Firmware controllable 3-state output buffer enable for serial output pin.
SOFTSW = 0
SOFTSW = 1
Serial output buffer is disabled
Clock output enable: Enable/disable the clock output at CLKOUT terminal.
CLKOUTEN = 0
CLKOUTEN = 1
Clock output is enabled
Clock output source select: Select between 3.556-MHz fixed clock or UART baud out clock as output
clock source.
CLKSLCT = 0
CLKSLCT = 1
Fixed 3.556-MHz free running clock is selected as clock output
Reserved
Hardware automatic switching is selected
1
SOFTSW
0
Serial output buffer is enabled
2
CLKOUTEN
0
Clock output is disabled. Device drives low at CLKOUT terminal.
3
CLKSLCT
0
UART baud out clock is selected as clock output
4
–
7
RSV
0
Clock Output Control
The CLKOUTEN bit in the Mode Configuration Register (MODECNFG) is used to enable or disable the clock output
at the CLKOUT terminal of the TUSB3410. The power up default of CLKOUT is disabled to ensure the clock is not
applied to the smart card until it is powered. Firmware can write a 1 to enable the clock output if needed.
The CLKSLCT bit in the MODECNFG register is used to select the output clock source from either a fixed 3.556-MHz
free-running clock or the UART BaudOut clock.
5.1.6
Vendor ID/Product ID
USB
–
IF and Microsoft WHQL certification requires that end equipment makers use their own unique vendor ID and
product ID for each product (model). OEMs cannot use silicon vendor
’
s (for instance, TI
’
s default) VID/PID in their
end products. A unique VID/PID combination will avoid potential driver conflicts and enable logo certification. See
www.usb.org
for more information.
5.1.7
SERNUM7: Device Serial Number Register (Byte 7)
(Addr:FFEF)
Each TUSB3410 chip has a unique 64-bit serial die id number, which is generated during manufacturing. The die id
is incremented sequentially, however there is no assurance without skip in the die id number. The device serial
number register utilizes (mirrors) this unique 64-bit serial die id number.
After power-up reset, this read-only register (SERNUM7) contains the most significant byte (byte 7) of the complete
64-bit device serial number. The USB reset cannot reset this register.
7
6
5
4
3
2
1
0
D63
R/O
D62
R/O
D61
R/O
D60
R/O
D59
R/O
D58
R/O
D57
R/O
D56
R/O
BIT
7
–
0
NAME
D[7:0]
RESET
FUNCTION
Device serial number byte 7 value
Device serial number byte 7 value
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