 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SAMA5D2-PTC-EK Datasheet(PDF) 39 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
SAMA5D2-PTC-EK Datasheet(HTML) 39 Page - Microchip Technology |
|
|
39 / 66 page  Figure 3-41. JTAG Switch TDIOUT TDIIN PA26_3U PA26_3U TDOIN TMSIN TMSOUT TCKIN TCKOUT VDD_3V3_3U GND_POWER JTAG_TCK_PD27 JTAG_TMS_PD30 JTAG_TDI_PD28 CON_JTAG_Pin2 CON_JTAG_Pin4 CON_JTAG_Pin8 JTAG_TDO_PD29 CON_JTAG_Pin6 R223 150R-1% R0402 U22 NLAS3899BMNTWG WQFN-16 NCA 1 COMA 16 NOA 15 NOB 3 COMB 4 NCB 5 ABIN 2 NOC 7 COMC 8 NCC 9 CDIN 10 NOD 11 COMD 12 NCD 13 R222 150R-1% R0402 R218 150R-1% R0402 3.4.3 Hardware UART via CDC In addition to the J-Link-OB functionality, the ATSAM3U4C microcontroller provides a bridge to a debug serial port (UART DBGU) of the SOM's processor. The port is made accessible over the same USB connection used by JTAG by implementing Communication Device Class (CDC), which allows terminal communication with the target device. This feature is enabled only if the SAM3U/PA25 (pin K10) is not grounded. The pin is normally pulled high and controlled by jumper JP9. • Jumper JP9 not installed: the J-Link-CDC is enabled and fully functional. • Jumper JP9 installed: the J-Link-CDC device is disabled. The USB Communications Device Class (CDC) enables to convert the USB device into a serial communication device. The target device running USB-Device CDC is recognized by the host as a serial interface (USB2COM, virtual COM port) without the need to install a special host driver (since the CDC is standard). All PC software using a COM port work without modifications with this virtual COM port. Under Windows, the device shows up as a COM port; under Linux, as a /dev/ACMx device. This enables the user to use host software which was not designed to be used with USB, such as a terminal program. Table 3-18. Debug COM Port PIOs Signal Descriptions PIO Mnemonic Shared Signal Description PB26 URXD0 - Receive data PB27 UTXD0 - Transmit data SAMA5D2-PTC-EK Board Components © 2017 Microchip Technology Inc. DS50002709A-page 39 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
