參數(shù)資料
型號: GT3200-JD
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 網絡接口
英文描述: Aluminum Electrolytic Radial Leaded General Purpose Capacitor; Capacitance: 33uF; Voltage: 16V; Case Size: 5x11 mm; Packaging: Bulk
中文描述: DATACOM, INTERFACE CIRCUIT, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, 0.5 MM PITCH, TQFP-64
文件頁數(shù): 10/51頁
文件大?。?/td> 1462K
代理商: GT3200-JD
USB2.0 PHY IC
Revision 1.3 (10-05-04)
5
SMSC GT3200, SMSC USB3250
DATASHEET
Chapter 4 Interface Signal Definition
Table 4.1 System Interface Signals
NAME
DIRECTION
ACTIVE
LEVEL
DESCRIPTION
RESET
Input
High
Reset.
Reset all state machines. After coming out of reset, must
wait 5 rising edges of clock before asserting TXValid for transmit.
Assertion of Reset: May be asynchronous to CLKOUT
De-assertion of Reset: Must be synchronous to CLKOUT
XCVRSELECT
Input
N/A
Transceiver Select.
This signal selects between the FS and HS
transceivers:
0: HS transceiver enabled
1: FS transceiver enabled.
TERMSELECT
Input
N/A
Termination Select.
This signal selects between the FS and HS
terminations:
0: HS termination enabled
1: FS termination enabled
SUSPENDN
Input
Low
Suspend.
Places the transceiver in a mode that draws minimal
power from supplies. Shuts down all blocks not necessary for
Suspend/Resume operation. While suspended, TERMSELECT
must always be in FS mode to ensure that the 1.5k
pull-up on
DP remains powered.
0: Transceiver circuitry drawing suspend current
1: Transceiver circuitry drawing normal current
CLKOUT
Output
Rising Edge
System Clock.
This output is used for clocking receive and
transmit parallel data at 60MHz (8-bit mode) or 30MHz (16-bit
mode). When in 8-bit mode, this specification refers to CLKOUT
as CLK60. When in 16-bit mode, CLKOUT is referred to as
CLK30.
OPMODE[1:0]
Input
N/A
Operational Mode.
These signals select between the various
operational modes:
[1] [0] Description
0 0 0: Normal Operation
0 1 1: Non-driving (all terminations removed)
1 0 2: Disable bit stuffing and NRZI encoding
1 1 3: Reserved
LINESTATE[1:0]
Output
N/A
Line State.
These signals reflect the current state of the USB
data bus in FS mode, with [0] reflecting the state of DP and [1]
reflecting the state of DM. When the device is suspended or
resuming from a suspended state, the signals are combinatorial.
Otherwise, the signals are synchronized to CLKOUT.
[1] [0] Description
0 0 0: SE0
0 1 1: J State
1 0 2: K State
1 1 3: SE1
DATABUS16_8
Input
N/A
Databus Select.
Selects between 8-bit and 16-bit data transfers.
0: 8-bit data path enabled. VALIDH is undefined. CLKOUT =
60MHz.
1: 16-bit data path enabled. CLKOUT = 30MHz.
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