M2560 doc update

doc/Mega2560/MEGA2560.sch

@@ -36,7 +36,7 @@ $Descr A4 11693 8268
 encoding utf-8
 Sheet 1 1
 Title "OpenTX board based on Arduino MEGA2560"
-Date "2 may 2015"
+Date "17 may 2015"
 Rev "0"
 Comp "Copyright 2015 F. Aguerre"
 Comment1 ""
@@ -41132,7 +41132,7 @@ CA 3B B1 B4 D6 FB 76 3A 4D 11 32 4D 1E A1 3D 78 1C 8B 1E 14 74 10 57 46 8C 97 FB
 33 B3 93 2C A5 90 EC 7D 2B A5 BC 7A F5 EA E1 E1 5E 44 C8 BD 2E 90 84 08 60 87 C2 BB D7 FD 40 85 
 4A 52 6F 3D D0 6D 9E 6E 41 36 CA 77 04 97 99 83 92 6E D1 7C 20 6D 2C 33 D2 7F 5B 16 F2 83 51 39 
 A0 3F CF F3 A7 9F 7E FA CB 5F FE F5 EB D7 AF 45 64 59 96 6D DB F6 23 3E B3 52 CA B3 1B C5 00 F7 
-08 C0 CC FE 1F 15 4F 30 6D 3D C2 80 DE 00 00 00 00 49 45 4E 44 AE 42 60 82 14 $EndBitmap
+08 C0 CC FE 1F 15 4F 30 6D 3D C2 80 DE 00 00 00 00 49 45 4E 44 AE 42 60 82 00 $EndBitmap
 EndData
 $EndBitmap
 $Comp
@@ -41739,7 +41739,7 @@ F 3 "" H 1750 7050 60  0000 C CNN
 	-1   0    0    1   
 $EndComp
 Text Notes 4850 6550 0    42   ~ 0
-LCD pinout labels (may differ, depending of brand) :\nA0 = R/S (register select) = D/I (data/instruction select)\nRST = RES (reset)\nCS = chip select\nWR = write\nRD = read\n\n
+LCD supported : ST7565P, ST7565R, ERC12864FSF, ST7920\n\nLCD pinout labels (may differ, depending of brand) :\nA0 = R/S (register select) or D/I (data/instruction select)\nRST = RES (reset)\nCS = chip select (not used on ST7920)\nWR = write or read(1)/write(0) on ST7920\nRD = read or serial clock line (in 8bit parallel mode) on ST7920
 Text Label 6550 7550 2    42   ~ 0
 OpenTX input
 Text GLabel 5250 7550 2    42   Input ~ 0