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XR21V1414 EVALUATION BOARD USER’S MANUAL

REV. 1.0.0

Figure 2

shows a bottom view of XR21V1414 evaluation board layout.

F

IGURE

2. B

OTTOM

V

IEW

OF

XR21V1414 E

VALUATION

B

OARD

L

AYOUT

Downloaded from

electronic components distributor

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Содержание XR21V1414

Страница 1: ...oard It will describe the hardware setup required to operate the part 2 0 OVERVIEW The XR21V1414 evaluation board has one 48 TQFP package on it Figure 1 shows a top view of XR21V1414 evaluation board FIGURE 1 TOP VIEW OF XR21V1414 EVALUATION BOARD LAYOUT layout Downloaded from Elcodis com electronic components distributor ...

Страница 2: ...TION BOARD USER S MANUAL REV 1 0 0 Figure 2 shows a bottom view of XR21V1414 evaluation board layout FIGURE 2 BOTTOM VIEW OF XR21V1414 EVALUATION BOARD LAYOUT Downloaded from Elcodis com electronic components distributor ...

Страница 3: ...4LVC2G53DCTR SM8 Switch UART TXD signal into either RS 232 or RS 485 transceiver U11 Bottom SN74LVC2G53DCTR SM8 Switch RXC signal from either RS 232 or RS 485 trans ceiver U12 Bottom SN74LVC2G53DCTR SM8 Switch RXD signal from either RS 232 or RS 485 trans ceiver U13 Top SP3245EEY L TSSOP 28 Exar s RS 232 transceiver for channel A U14 Top SP3245EEY L TSSOP 28 Exar s RS 232 transceiver for channel B...

Страница 4: ...J 002A External power input CON2 Top 690 004 621 023 USB B Type connector Communication with USB host USBD USBD and power source for evaluation board VBus CON3 Top 182 009 113R161 RS 232 mode DB9 male connector for channel A CON4 Top 182 009 113R161 RS 232 mode DB9 male connector for channel B CON5 Top 182 009 113R161 RS 232 mode DB9 male connector for channel C CON6 Top 182 009 113R161 RS 232 mod...

Страница 5: ...ed JP5 Top Selects RS 232 or RS 485 mode for Channel A Jumper in 1 2 selects RS 485 mode Jumper in 2 3 selects RS 232 mode default JP6 Top Selects RS 232 or RS 485 mode for Channel B Jumper in 1 2 selects RS 485 mode Jumper in 2 3 selects RS 232 mode default JP7 Top Selects RS 232 or RS 485 mode for Channel C Jumper in 1 2 selects RS 485 mode Jumper in 2 3 selects RS 232 mode default JP8 Top Selec...

Страница 6: ... COMMENTS JP38 Top Select remote control wakeup signal for Channel A Jumper in 1 2 selects UART RS 232 transceiver RI signal Jumper in 2 3 selects push button SW1 Top Generate remote wakeup signal Push once to generate one remote wakeup signal JP28 Top UART side Channel C external loop back header Jumper in enables external loopback for channel C in the UART side NOTE External loopback via this ju...

Страница 7: ...ts RTS based direction control for TX Jumper in 2 3 selects DTR based direction control for TX JP10 Top Select Channel A direction control for RX and TX or always for RX Jumper in 1 2 selects common direction control for RX and TX Jumper in 2 3 enables RX always JP11 Top Channel select for half duplex or full duplex mode Jumper in 1 2 selects for half duplex mode Jumper in 2 3 selects for full dup...

Страница 8: ...half duplex mode Jumper in 2 3 selects for full duplex mode JP20 Top Channel C select for half duplex or full duplex mode Jumper in 1 2 selects for half duplex mode Jumper in 2 3 selects for full duplex mode JP37 Top Power supply for RS 485 transceiver of Channel D Not installed Trace between pin 1 2 JP21 Top Select Channel D RTS or DTR direction control for TX Jumper in 1 2 selects RTS based dire...

Страница 9: ... of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness Products are not authorized for use in such applications unless EXAR Corporation receives in writing assurances to its satisfaction that a the risk of injury or damage has been min...

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