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From: cvs at opencores.org<cvs@o...>
Date: Sat May 24 17:19:50 CEST 2008
Subject: [cvs-checkins] MODIFIED: z80soc ...
Date: 00/08/05 24:17:19

Modified: z80soc/doc README-S3E.txt
Log:
Version 0.6


Revision Changes Path
1.5 z80soc/doc/README-S3E.txt

http://www.opencores.org/cvsweb.shtml/z80soc/doc/README-S3E.txt.diff?r1=1.4&r2=1.5

(In the diff below, changes in quantity of whitespace are not shown.)

Index: README-S3E.txt
===================================================================
RCS file: /cvsroot/rrred/z80soc/doc/README-S3E.txt,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -b -r1.4 -r1.5
--- README-S3E.txt 14 May 2008 00:00:30 -0000 1.4
+++ README-S3E.txt 24 May 2008 15:19:50 -0000 1.5
@@ -7,36 +7,27 @@

Memory
------
-0000H - 01FFH - ROM (0 - 8191)
-2000H - 3FFFH - VIDEO RAM (8192 - 16383)
-4000H - 7FFFH - RAM memory (16384 - 32767)
-8000H - 801FH - LCD Video RAM (32768 - 32769)
-
-IO
---
-
-Output Ports
-------------
-01H - Green Leds (7-0)
-
-Inputs
-------
-
-Switches
---------
-20H - SW(3-0)
-
-Push Buttons
-------------
-30H - KEY(3-0)
-
-Rotary Knob
------------
-70H - Rotary control direction
-
-Keyboard
---------
-80H - Read Keyboard Ascii code
+0000H - 3FFFH - ROM (0 - 16383)
+4000H - 5FFFH - VIDEO RAM (16384 - 24575)
+7FE0H - 7FFFH - LCD Video RAM (32736 - 32767)
+8000H - BFFFH - RAM memory (32768 - 49151)
+
+Registers
+---------
+7FDDH - Z80SOC VERSION (0 = DE1, 1 = S3E)
+7FDEH - 7FDFH - STACK ADDRESS (should be loaded with "ld sp,(7FDEh)" in the beginning of program
+
+IO (Ports)
+----------
+
+01H - Out - Green Leds (7-0)
+20H - In - SW(3-0)
+30H - In - KEY(3-0)
+70H - In - Rotary control direction
+80H - In - PS/2 Keyboard
+90H - Out - Video
+91H - Out - Video cursor X
+92H - Out - Video cursor Y

--

@@ -52,7 +43,7 @@
Input push buttons
Input Switches
PS/2 keyboard
- Video text out
+ Video text out (memory mapped and port mapped)
Leds
LCD
Rotary Knob
@@ -70,7 +61,10 @@

The Rotary knob can be used at any time to rotate the text in the LCD to the left or to the right.

-To reset the Z80, use Key West (left push button).
+The looping text inside the box demonstrates how to access the video ram.
+To change speed of scrolling, use the switches (SW).
+
+To reset the Z80, press the Knob Button (rotary).

Hope you enjoy.