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參數(shù)資料
型號: TPS65920A2ZCH
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數(shù): 85/115頁
文件大小: 1232K
代理商: TPS65920A2ZCH
UCLK
STP
DIR_&_NXT
DATA[7:0]
Data_OUT
Data_IN
HSU0
HSU3
HSU6
HSU7
HSU1
HSU4
HSU5
HSU2
037-049
SWCS037G
– MAY 2008 – REVISED APRIL 2011
Figure 7-3. HS-USB Interface
—Transmit and Receive Modes (ULPI 8-bit)
NOTE
ULPI data [7:0] lines are set to 1 after USB PHY power up, and before the clock signal is
stable.
The input timing requirements are given by considering a rising or falling time of 1 ns (see Table 7-1).
Table 7-1. HS-USB Interface Timing Requirements
Notation
Parameter
Min
Max
Unit
HSU4
ts(STPV-CLKH)
Setup time, STP valid before UCLK rising
6
ns
edge
HSU5
th(CLKH-STPIV)
Hold time, STP valid after UCLK rising edge
0
ns
Setup time, DATA[0:7] valid before UCLK
6
HSU6
ts(DATAV-CLKH)
ns
rising edge
Hold time, DATA[0:7] valid after UCLK rising
0
HSU7
th(CLKH-DATIV)
ns
edge
Table 7-2 lists the HS-USB interface switching requirements.
Table 7-2. HS-USB Interface Switching Requirements(1)
Notation
Parameter(1)
Min
Typ
Max
Unit
HSU0
fp(CLK)
UCLK clock frequency
Steady state
58.42
60
61.67
MHz
HSU1
tW(CLK)
UCLK duty cycle
Steady state
48.3%
50%
51.7%
Delay time, UCLK rising edge to
Steady state
0
9
td(CLKH-DIR)
ns
DIR transition
HSU2
Delay time, UCLK rising edge to
Steady state
0
9
td(CLKH-NXTV)
ns
NXT transition
Delay time, UCLK rising edge to
Steady state
0
9
HSU3
td(CLKH-DATV)
ns
DATA[0:7] transition
(1)
The capacitive load for output data and control load is 10 pF (rising and falling time is 2 ns).
The capacitive load for the CLK port is 6 pF (rising and falling time is 1 ns).
The HS-USB interface has only one state: the steady state.
7.1.3
USB-CEA Carkit Port Timing
This mode allows the link for communication through the USB PHY to a remote carkit in CEA audio + data
during audio (DDA) mode as defined in the CEA-936A specification. In this mode, the ULPI data bus is
redefined as a 2-pin UART interface, which exchanges data through a direct access to the FS/LS analog
transmitter and receiver.
Copyright
2008–2011, Texas Instruments Incorporated
USB Transceiver
71
focus.ti.com: TPS65930/TPS65920
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