;      98 void init_ext_bus(void)
                                             .glb        _init_ext_bus
00000000                         _init_ext_bus:                     ; function: init_ext_bus
                                             .STACK      _init_ext_bus=4
00000000                         L10:
                                             .LINE       "C:rx210_tft.c",100
                                 ;      99 {
                                 ;     100 	SYSTEM.SYSCR0.WORD = 0x5a03;		// Bus freigeben 8-Bit Datenbus an Port D reicht
00000000 FB3E000008                          MOV.L       #00080000H,R3
                                             .LINE       "C:rx210_tft.c",101
                                 ;     101 	MPC.PFBCR0.BYTE = 0x51	;		// BC1, D8-D17 und A0 - A7 freigeben
00000005 FB5E00C108                          MOV.L       #0008C100H,R5
0000000A F93903035A                          MOV.W       #5A03H,06H[R3]
0000000F 3C5651                              MOV.B       #51H,06H[R5]
                                             .LINE       "C:rx210_tft.c",102
                                 ;     102 	MPC.PFAOE0.BYTE= 0xff;			// A8 - A15 an Port B freigeben
00000012 3C54FF                              MOV.B       #0FFH,04H[R5]
                                             .LINE       "C:rx210_tft.c",103
                                 ;     103 	MPC.PFAOE1.BYTE= 0x0f;			// A16 - A19 an Port C freigeben
00000015 3C550F                              MOV.B       #0FH,05H[R5]
00000018 FA35091C01                          MOV.W       #0001H,3812H[R3]
                                             .LINE       "C:rx210_tft.c",106
                                 ;     104 	
                                 ;     105 	BSC.CS1CR.WORD = 0x0001;		// CS1-Bus mit 16-Bit freigeben
                                 ;     106 	BSC.CS1MOD.WORD = 0x0001;		// single wr-strobe-mode
0000001D FA35091801                          MOV.W       #0001H,3012H[R3]

                                             .LINE       "C:rx210_tft.c",112
                                 ;     112 	BSC.CS1WCR2.LONG = 0x10010010;		// CS1-Bus Wartezyklen
0000002A FA32060C10000110                    MOV.L       #10010010H,3018H[R3]
                                             .LINE       "C:rx210_tft.c",114
                                 ;     113 	
                                 ;     114 	BSC.CS2CR.WORD = 0x0001;		// CS2-Bus mit 16-Bit freigeben
00000032 FA35111C01                          MOV.W       #0001H,3822H[R3]
                                             .LINE       "C:rx210_tft.c",115
                                 ;     115 	BSC.CS2WCR1.LONG = 0x00000;		// CS2-Bus keine Wartezyklen
00000037 FA36090C00                          MOV.L       #00000000H,3024H[R3]
                                             .LINE       "C:rx210_tft.c",116
                                 ;     116 	BSC.CS2WCR2.LONG = 0x00000;		// CS2-Bus keine Wartezyklen
0000003C FA360A0C00                          MOV.L       #00000000H,3028H[R3]
                                             .LINE       "C:rx210_tft.c",118
                                 ;     117 	
                                 ;     118 	MPC.PFCSE.BIT.CS5E = 1;		// CS1# freigeben 0x7000000
00000041 F055                                BSET        #05H,[R5]
                                             .LINE       "C:rx210_tft.c",119
                                 ;     119 	MPC.PFCSE.BIT.CS6E = 1;		// CS2# freigeben 0x6000000
00000043 F056                                BSET        #06H,[R5]
                                             .LINE       "C:rx210_tft.c",124
                                 ;     124     SYSTEM.SCKCR.BIT.BCK = 0x1;	// BCLK auf 25MHz begrenzen
00000045 AA35                                MOV.L       20H[R3],R5
00000047 7725FFFFF0                          AND         #0FFF0FFFFH,R5
0000004C 7905                                BSET        #10H,R5
0000004E A235                                MOV.L       R5,20H[R3]
00000050 02                                  RTS