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參數(shù)資料
| 型號： | ISP1109 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Universal Serial Bus transceiver with carkit support |
| 中文描述： | 與車載通用串行總線收發(fā)器支持 |
| 文件頁數(shù)： | 17/59頁 |
| 文件大?。?/td> | 295K |
| 代理商： | ISP1109 |
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9397 750 13355
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 14 July 2005
17 of 59
Philips Semiconductors
ISP1109
USB transceiver with carkit support
8.3 USB modes
The four USB modes of the ISP1109 are:
VP_VM unidirectional mode
VP_VM bidirectional mode
DAT_SE0 unidirectional mode (default)
DAT_SE0 bidirectional mode.
In VP_VM USB mode, pin DAT/VP is used for the VP function, pin SE0/VM is used for the
VM function, and pin RCV is used for the RCV function.
In DAT_SE0 USB mode, pin DAT/VP is used for the DAT function, pin SE0/VM is used for
the SE0 function, and pin RCV is not used.
In unidirectional mode, pins DAT/VP and SE0/VM are always input. In bidirectional mode,
the direction of these signals depends on input OE_N.
Table 12
specifies the functionality of the device during the four USB modes.
[1]
Some of the modes and signals are provided to achieve backward compatibility with IP cores.
[2]
TxD+ and TxD
are single-ended inputs to drive the DP and DM outputs, respectively, in single-ended mode.
RxD+ and RxD
are the outputs of the single-ended receivers connected to DP and DM, respectively.
[3]
[4]
TxD is the input to drive DP and DM in DAT_SE0 mode.
[5]
FSE0 is to force an SE0 on the DP and DM lines in DAT_SE0 mode.
[6]
RxD is the output of the differential receiver.
[7]
RSE0 is an output, indicating that an SE0 is received on the DP and DM lines.
8.4 Transparent modes
8.4.1
Transparent UART mode
When in transparent UART mode, an SoC (with the UART controller) communicates
through the ISP1109 to another UART device that is connected to its DP and DM lines.
The ISP1109 operates as logic level translator between the following pins, depending on
the setting of register bit UART_PIN_SEL.
If UART_PIN_SEL = 0 (default):
–
For the TxD signal: From UART_TXD (V
CC(I/O)
level) to DM (REG3V3 level)
–
For the RxD signal: From DP (REG3V3 level) to UART_RXD (REG3V3 level).
Table 12:
USB mode
[1]
USB functional modes: I/O values
Bit
DAT_SE0
unidirectional
0
bidirectional
Pin
OE_N
X
LOW
HIGH
X
LOW
HIGH
BI_DI
0
1
DAT/VP
TxD+
[2]
TxD+
[2]
RxD+
[3]
TxD
[4]
TxD
[4]
RxD
[6]
SE0/VM
TxD
[2]
TxD
[2]
RxD
[3]
FSE0
[5]
FSE0
[5]
RSE0
[7]
VP
RxD+
[6]
VM
RxD
[6]
RCV
RxD
[6]
VP_VM
DAT_SE0
unidirectional
bidirectional
1
0
1
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| ISP1109BSFE | 功能描述:IC TXRX SERIAL BUS UNIV 32HVQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:2,500 系列:- 類型:驅(qū)動器 驅(qū)動器/接收器數(shù):4/0 規(guī)程:RS422 電源電壓:4.5 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
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