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+
+===============================================================================
+	H A R D W A R E	  O V E R V I E W
+===============================================================================
+===============|===============|===============|===============|===============
+	       |  DK20K200     |  DK1C20       |  DK1S10       |  DK1S40
+---------------|---------------|---------------|---------------|---------------
+	       |	       |	       |	       |
+  Schem. Nr.   | Nios Dev.Brd. |  P06-08713-00 |  P06-08468-01 |  P06-09178-00
+	 Rev.  | pilot.	       |  01	       |  01	       |  00
+	 Date  | 2001/02/06    |  2003/02/20   |  2003/02/14   |  2003/05/14
+[1]	       |	       |	       |	       |
+===============|===============|===============|===============|===============
+	       |	       |	       |	       |
+  FPGA	       | "APEX"	       | "Cyclon"      | "Stratix"     | "Stratix"
+	       |  EP20K200E    |  EP1C20       |  EP1S10       |  EP1S40
+	       |	       |	       |
+	       | (484 FBGA)    | (400 FBGA)    | (780 FBGA)
+[2],[3],[4]    |	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  Clock (OSC)  |  33.333 MHz   |  50 MHz
+	       |	       | (with ext. supply)
+	       |
+	       |  PI49FCT3805
+[5]	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  Flash	       |  1 MByte      |  8 MByte
+	       |	       |
+	       |  AM29LV800BB  |  AM29LV065DU120REI
+	       |  8/16 bit bus |  8 bit bus
+	       |  1 chip       |  1 chip
+[6],[7]	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |	       |
+  serial       |  no such      |  4 MBits      |  no such
+  Flash	       |	       |	       |
+	       |	       |  EPCS4SI8     |
+[8]	       |	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  Compact      |  no such, as  |  see below: prototype adapter
+  Flash (CF)   |  module only  |
+	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  SRAM	       |  256 KByte    |  1 MByte
+	       |	       |
+	       |  IDT71V016S   |  IDT71V416S10PH
+	       |  32 bit bus   |  32 bit bus
+	       |  2 chips      |  2 chips
+	       |    interlaced |    interlaced
+[9],[10]       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  SDRAM	       |  SODIMM only  |  16 MByte
+	       |	       |
+	       |	       |  MT48LC4M32B2TG-7
+	       |  64 bit bus   |  32 bit bus
+	       |	       |  1 chip
+[11]	       |	       |
+===============|===============|===============|===============|===============
+	       |	       |
+  serial I/O   |  1 RS232      |  2 RS232
+	       |	       |
+	       |  LTC1386      |  MAX3237CAI
+	       |	       |
+	       |  port 1:      |  port 1:
+	       |   RxD / TxD,  |   RxD / TxD,
+	       |   RTS / CTS   |   RTS / CTS, DTR / DSR, DCD, RI
+	       |	       |
+	       |  ! ! ! ! ! !  |  port 2:      |  port 2:
+	       |  RTS/CTS can  |   RxD / TxD   |   RxD / TxD
+	       |  be RxD/TxD   |	       |   RTS / CTS, DTR / DSR
+	       |  of 2nd port  |	       |   DCD, RI
+[12],[13]      |  ! ! ! ! ! !  |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  Ethernet     |  no such, as  |  1 10BaseT / 100BaseT
+	       |  module only  |
+	       |	       |  LAN91C111-NE
+	       |	       |  32 bit bus
+	       |	       |  no external EEPROM
+	       |	       |  LEDA# for link
+	       |	       |  LEDB# for Rx / Tx
+[14]	       |	       |
+===============|===============|===============|===============|===============
+	       |	       |
+  user	       |  8	       |  no such
+  switches     |  SW[7..0]     |
+	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |
+  user push    |  4
+  buttons      |  PB[3..0]
+	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  user LEDs    |  2	       |  8
+	       |  LED[1..0]    |  LED[7..0]
+	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |
+  user seven   |  2
+  segment      |  HEX[1..0][G..A,DP]
+	       |
+===============|===============|===============|===============|===============
+	       |	       |
+  3.3V proto-  |  w/o level    |  no such -- only 5V
+  type adapter |  shift buffer |
+	       |	       |
+	       |  40 I/O pins  |
+	       |  1 card sel.  |
+	       |  1 reset out. |
+	       |  1 OSC clock  |
+	       |  1 CPU clock  |
+	       |  1 clock out. |
+	       |	       |
+---------------|---------------|---------------|---------------|---------------
+	       |	       |
+  5V prototype |  with level   |  2 ports -- both card ports supplied with its
+  adapter      |  shift buffer |	     own level shift buffer
+	       |	       |
+	       |  40 I/O pins  |  port 1 & 2:
+	       |  1 card sel.  |   41 I/O pins
+	       |  1 Vee	 ? ? ? |   1 card select
+	       |  1 reset out. |   1 reset output (from dev/board)
+	       |  1 OSC clock  |   1 OSC clock	  (from dev/board)
+	       |  1 CPU clock  |   1 CPU clock	  (from dev/board)
+	       |  1 clock inp. |   1 clock input  (to dev/board)
+	       |	       |
+	       |	       |  (special) port 1:
+	       |	       |   1 CF select
+	       |	       |   1 CF present
+	       |	       |   1 CF ATA select
+	       |	       |   1 CF power
+	       |	       |
+	       |	       |  NOTE: Both card ports are prepared for raw
+	       |	       |	IDE working. You can connect such
+	       |	       |	devices directly to the 40 pin header.
+	       |	       |	The signal PDIAG (passed diagnostic)
+	       |	       |	is not connected to any I/O signal.
+	       |	       |	Card port 1 is hard wired to the on
+	       |	       |	board Copact Flash adapter together
+	       |	       |	with all other signals needed by CF
+	       |	       |	cards. Hot plug should be working too.
+[15],[16]      |	       |
+===============|===============|===============|===============|===============
+	       |	       |
+  config. CPLD |  EPM7064      |  EPM7128
+	       |	       |
+  (alternative |  decition by  |  decision by
+   FPGA conf.) |  jumper       |  push button
+	       |	       |
+	       |  FPGA config. |  FPGA config. |  FPGA config.
+	       |  from Flash   |  from Flash   |  from Flash
+	       |  only	       |  and EPCS4    |  only
+	       |	       |	       |
+===============|===============|===============|===============|===============
+===============================================================================
+
+
+===============================================================================
+	R E F E R E N C E S
+===============================================================================
+[1]	http://www.altera.com/literature/lit-nio.jsp
+[2]	http://www.altera.com/literature/lit-apx.jsp
+[3]	http://www.altera.com/literature/lit-cyc.jsp
+[4]	http://www.altera.com/literature/lit-stx.jsp
+[5]	http://www.pericom.com/pdf/datasheets/PI49FCT3805.pdf
+	http://www.pericom.com/products/clock/psempart.php?productID=PI49FCT3805
+[6]	http://www.amd.com/us-en/FlashMemory/ProductInformation/0,,37_1447_1623_1468^1532,00.html
+	http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/21490.pdf
+[7]	http://www.amd.com/us-en/FlashMemory/ProductInformation/0,,37_1447_1623_1468^1596,00.html
+	http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23544b.pdf
+[8]	http://www.altera.com/literature/lit-config.html
+	http://preview.altera.com/literature/ds/micron.pdf
+[9]	http://www.idt.com/products/pages/Asynchronous_SRAMs-71V016SA.html
+[10]	http://www.idt.com/products/pages/Asynchronous_SRAMs-71V416SL.html
+[11]	http://www.micron.com/products/dram/sdram/part.aspx?part=MT48LC4M32B2TG-7
+[12]	http://www.linear.com/prod/datasheet.html?datasheet=33
+	http://www.linear.com/pdf/1386fa.pdf
+[13]	http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1068/ln/en
+	http://pdfserv.maxim-ic.com/en/ds/MAX3222-MAX3241.pdf
+[14]	http://www.smsc.com/main/catalog/lan91c111.html
+[15]	http://www.t13.org/index.html
+[16]	http://www.compactflash.org/faqs/faq.htm
+
+
+===============================================================================
+Stephan Linz <linz@li-pro.net>