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Eurotech Appliances PXA255 Serial COMs ports, IRQ, Port, Address, RX / TX, Signals, FIFO depth, COM1 – RS232 interface, COM2 – RS232 interface, COM3 – RS232 interface

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VIPER Technical Manual	Detailed hardware description

Serial COMs ports

There are five high-speed, fully functionally compatible 16550 serial UARTs on the VIPER. Four of these channels can be used as standard RS232 serial interfaces, and the remaining one (COM5) can be configured as RS422 or RS485.

				FIFO depth
	Port	Address	IRQ	RX / TX	Signals

	COM1	0x40100000 –	Internal	64 / 64	RS232 Rx, Tx, CTS, RTS, RI, DSR,
		0x40100023			DCD, DTR
	COM2	0x40200000 –	Internal	64 / 64	RS232 Rx, Tx, RTS, CTS
		0x40200023
	COM3	0x40700000 –	Internal	64 / 64	RS232 Rx, Tx
		0x40700023
VL	COM4	0x14300010 –	GPIO4	128 / 128	RS232 Rx, Tx, CTS, RTS, RI, DSR,
		0x1430001F			DCD, DTR
VL	COM5	0x14300000 –	GPIO3	128 / 128	RS422 / RS485 Tx, Rx
		0x1430000F

Please see the PXA255 Developer’s Manual for details of internal interrupts.

COM1 – RS232 interface

Uses the full function UART in the PXA255 (FFUART). The port is buffered to RS232 levels with ±15kV ESD protection, and supports full handshaking and modem control signals. The maximum baud rate on this channel is 230.4kb/s (CPU max capability). A factory fit option configures COM1 as TTL Level signals to interface to a modem.

Please contact Eurotech Ltd for details. Contact details are provided in Appendix 59H60H365HA – Contacting Eurotech , page 101 366H.

COM2 – RS232 interface

Uses the Bluetooth UART in the PXA255 (BTUART). The port is buffered to RS232 levels with ±15kV ESD protection, and supports full handshaking and modem control signals. The maximum baud rate on this channel is 921.6kb/s (CPU max capability).

COM3 – RS232 interface

Uses the Standard UART in the PXA255 (STUART). The port is buffered to RS232 levels with ±15kV ESD protection, and supports full handshaking and modem control signals. The maximum baud rate on this channel is 230.4kb/s (CPU max capability).

© 2007 Eurotech Ltd Issue E

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Contents

VIPER / VIPER-Lite Technical Manual VIPER Technical Manual Contents Getting started Detailed hardware description VIPER address map Translations made by the MMU Introduction VIPER ‘at a glance’ VIPER-Lite‘at a glance’ VIPER features Network support Trusted Platform Module (TPM) [optional] Real time clock (RTC) Watchdog General purpose I/O (GPIO) VIPER support products •CYCLOPS •VIPER-ICE(Industrial Compact Enclosure) development kits Development kits available for the VIPER Windows CE/CE 5.0 development kit Embedded Linux development kit Wind River VxWorks 5.5 development kit Entry level development kits for VIPER or VIPER-Lite Windows CE / CE 5.0 development kit •Embedded Linux development kit Product handling and environmental compliance Conventions Tables Byte lane Getting started Using the VIPER Using the audio features Using the USB host Using the USB client Using the Ethernet interface Using the PC/104 expansion bus Detailed hardware description VIPER block diagram VIPER address map Translations made by the MMU PXA255 processor PXA255 GPIO pin assignments Page Page NoAF Signal name Active Sleep Function See section… Real time clock Watchdog timer Memory Static RAM Least Significant Byte CompactFLASH Region name Interrupt configuration and reset register [ICR] ICR Bit Functions Name Interrupt assignments PC/104 interrupt register [PC104I1] PC/104 interrupt register [PC104I2] (not available under Windows CE) Value Function PC/104 interrupts under embedded Linux and VxWorks PC/104 interrupts under Windows CE Flat panel display support TFT panel data bit mapping to the VIPER Panel data bus bit 18-bitTFT 12-bitTFT 9-bitTFT STN panel data bit mapping to the VIPER Dual scan colour STN Dual scan mono STN VIPER Active display signal (TFT) LCD backlight enable LCD logic supply enable LCD backlight brightness control STN BIAS voltage VIPER-FPIF1details Connector Function VIPER-FPIF1connectors LK1 – TFT clock delay selection PL1 – VIPER LCD cable connector Pin PL2 – Generic LCD connector PL3 – Direct connection to a NEC NL3224BC35-205.5inch 320x240 TFT display PL4 – Backlight inverter connector Pin Signal name PL5 – STN Bias connector FPIF-LVDS-TXdetails Connector FPIF-LVDS-TXconnectors JP1 – TX strobe selection JP2 – Cable power selection JP3 – MSL selection J1 – VIPER LCD cable connector J2 – LVDS Hirose connector J3 – LVDS MDR connector FPIF-LVDS-RXdetails FPIF-LVDS-RXconnectors JP1 – LCD power selection JP2 – Backlight power selection Page Page As viewed from the connector pins FPIF-CRTdetails FPIF-CRTconnectors J2 – CRT connector Audio General purpose I/O VIPER outputs PXA255 GPIO Register Address VIPER-I/O USB host interface USB client interface 10/100BaseTX Ethernet Ethernet signal mapping between VIPER and Ethernet breakout connectors Ethernet breakout PL3 RJ45 Ethernet LED signal mapping between VIPER and Ethernet breakout connectors Ethernet breakout PL2 – Serial COMs ports COM4 – RS232 interface COM5 – RS422/485 interface RS422 RS485 Typical RS422 and RS485 connection PC/104 interface VIPER PC/104 interface details PC/104 8-bitI/O read/write access cycles PC/104 16-bitI/O read/write access cycles PC/104 8-bitmemory write access cycle PC/104 16-bitmemory read/write access cycles Unsupported PC/104 interface features TPM JTAG and debug access Power and power management Power supplies Power management Processor current estimations Current saving from 5V when processor core is in performance mode Vcore (V) Asleep Current saving from 5V when processor core is in power saving mode Power savings Power saving mode Performance mode CPU Audio External peripheral device power estimations Device Part number Condition Power estimate examples Example 2: VIPER [Linux] at 200MHz in performance mode + LCD with backlight on Page Processor power management DAC Data Hex value CPU core voltage Comment LTC1659 DAC pin function Interrupt configuration and reset register ICR bit functions UART power management GPIO12 Operation status Transmitters Receivers Audio power management TPM Wake up events SourceGPIO Connectors, LEDs and jumpers Connectors PL1 – 10/100BaseTX Ethernet connector PL2 – Ethernet status LEDs connector As viewed from the connector pins COM5 COM3 COM2 COM4 COM1 PL5 – CompactFLASH connector PL6 – Audio connector PL7 – USB connector PL8 – TPM Tamper detect connector (optional) PL9 – GPIO connector PL10 – JTAG connector PL11 & PL12 – PC/104 connectors PL12 PL11 Row D Row C PL16 – Power connector PL17 – USB client connector 2011-1x2GSB/SN Status LEDs Jumpers RS485/422 configuration – LK4, LK5, LK6 and LK7 on JP1 LK4 Description LK5 Description LK6 & LK7 Description LCD supply voltage – LK8 on JP2 LK8 Description Battery jumper – LK9 on JP4 LK9 Description Appendix A – Contacting Eurotech Eurotech sales Eurotech technical support Eurotech Group Appendix B – Specification Appendix C – Mechanical diagram Appendix D – Reference information National Semiconductor Corporation Koninklijke Philips Electronics N.V Maxim Integrated Products Inc Linear Technology Corporation Appendix E – Acronyms and abbreviations Page Appendix F – RoHS-6Compliance - Materials Declaration Form Confirmation of Environmental Compatibility for Supplied Products Index