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+$Id: README.icn,v 1.7 2000/08/06 09:22:51 armin Exp $
+
+You can get the ICN-ISDN-card from:
+
+Thinking Objects Software GmbH
+Versbacher Röthe 159
+97078 Würzburg
+Tel: +49 931 2877950
+Fax: +49 931 2877951
+
+email info@think.de
+WWW   http:/www.think.de
+
+
+The card communicates with the PC by two interfaces:
+  1. A range of 4 successive port-addresses, whose base address can be 
+     configured with the switches.
+  2. A memory window with 16KB-256KB size, which can be setup in 16k steps
+     over the whole range of 16MB. Isdn4linux only uses a 16k window.
+     The base address of the window can be configured when loading
+     the lowlevel-module (see README). If using more than one card,
+     all cards are mapped to the same window and activated as needed.
+
+Setting up the IO-address dipswitches for the ICN-ISDN-card:
+
+  Two types of cards exist, one with dip-switches and one with
+  hook-switches.
+
+  1. Setting for the card with hook-switches:
+
+     (0 = switch closed, 1 = switch open)
+
+     S3 S2 S1  Base-address
+      0  0  0  0x300
+      0  0  1  0x310
+      0  1  0  0x320 (Default for isdn4linux)
+      0  1  1  0x330
+      1  0  0  0x340
+      1  0  1  0x350
+      1  1  0  0x360
+      1  1  1  NOT ALLOWED!
+    
+  2. Setting for the card with dip-switches:
+
+     (0 = switch closed, 1 = switch open)
+
+     S1 S2 S3 S4  Base-Address
+      0  0  0  0  0x300
+      0  0  0  1  0x310
+      0  0  1  0  0x320 (Default for isdn4linux)
+      0  0  1  1  0x330
+      0  1  0  0  0x340
+      0  1  0  1  0x350
+      0  1  1  0  0x360
+      0  1  1  1  NOT ALLOWED!
+      1  0  0  0  0x308
+      1  0  0  1  0x318
+      1  0  1  0  0x328
+      1  0  1  1  0x338
+      1  1  0  0  0x348
+      1  1  0  1  0x358
+      1  1  1  0  0x368
+      1  1  1  1  NOT ALLOWED!
+
+The ICN driver may be built into the kernel or as a module. Initialization
+depends on how the driver is built:
+
+Driver built into the kernel:
+
+  The ICN driver can be configured using the commandline-feature while
+  loading the kernel with LILO or LOADLIN. It accepts the following syntax:
+
+  icn=p,m[,idstring1[,idstring2]]
+
+  where
+
+    p = portbase      (default: 0x320)
+    m = shared memory (default: 0xd0000)
+
+  When using the ICN double card (4B), you MUST define TWO idstrings.
+  idstring must start with a character! There is no way for the driver
+  to distinguish between a 2B and 4B type card. Therefore, by supplying
+  TWO idstrings, you tell the driver that you have a 4B installed.
+  
+  If you like to use more than one card, you can use the program
+  "icnctrl" from the utility-package to configure additional cards.
+  You need to configure shared memory only once, since the icn-driver
+  maps all cards into the same address-space.
+
+  Using the "icnctrl"-utility, portbase and shared memory can also be
+  changed during runtime.
+
+  The D-channel protocol is configured by loading different firmware
+  into the card's memory using the "icnctrl"-utility.
+
+
+Driver built as module:
+
+  The module icn.o can be configured during "insmod'ing" it by
+  appending its parameters to the insmod-commandline. The following
+  syntax is accepted:
+
+    portbase=p membase=m icn_id=idstring [icn_id2=idstring2]
+
+  where p, m, idstring1 and idstring2 have the same meanings as the
+  parameters described for the kernel-version above.
+      
+  When using the ICN double card (4B), you MUST define TWO idstrings.
+  idstring must start with a character! There is no way for the driver
+  to distinguish between a 2B and 4B type card. Therefore, by supplying
+  TWO idstrings, you tell the driver that you have a 4B installed.
+  
+  Using the "icnctrl"-utility, the same features apply to the modularized
+  version like to the kernel-builtin one.
+
+  The D-channel protocol is configured by loading different firmware
+  into the card's memory using the "icnctrl"-utility.
+
+Loading the firmware into the card:
+
+  The firmware is supplied together with the isdn4k-utils package. It
+  can be found in the subdirectory icnctrl/firmware/
+
+  There are 3 files:
+
+    loadpg.bin   - Image of the bootstrap loader.
+    pc_1t_ca.bin - Image of firmware for german 1TR6 protocol.
+    pc_eu_ca.bin - Image if firmware for EDSS1 (Euro-ISDN) protocol.
+
+  Assuming you have installed the utility-package correctly, the firmware
+  will be downloaded into the 2B-card using the following command:
+
+    icnctrl -d Idstring load /etc/isdn/loadpg.bin /etc/isdn/pc_XX_ca.bin
+
+  where XX is either "1t" or "eu", depending on the D-Channel protocol
+  used on your S0-bus and Idstring is the Name of the card, given during
+  insmod-time or (for kernel-builtin driver) on the kernel commandline.
+
+  To load a 4B-card, the same command is used, except a second firmware
+  file is appended to the commandline of icnctrl.
+
+  -> After downloading firmware, the two LEDs at the back cover of the card
+     (ICN-4B: 4 LEDs) must be blinking intermittently now. If a connection
+     is up, the corresponding led is lit continuously.
+
+  For further documentation (adding more ICN-cards), refer to the manpage
+  icnctrl.8 which is included in the isdn4k-utils package.
+