Hardware Description
SYS68K/CPU-30 R4 Technical Reference Manual
Page 86
NOTE: For the connection to the IOBP-1 back panel, please refer to
Section 2.11, ‘The SYS68K/IOBP-1,’ on page 26.
3.12.7.1 DMA Transfer
Programming
Example
1. Backward compatibility to DSEL3
2. backward compatibility to DSEL4
3. factory option
WPROT
C14
TRU00
C13
WGATE
C12
WDATA
C11
STEPX
C10
DIRBC
C9
MOTOR
C8
DSEL1
C5, (C7)
1)
DSEL2
C6, (C3)
2)
INDEX
C4
HLOAD
(EJECT)
3)
C2
RPM
C1
*---------------------------------------------------------------
* READ DATA FROM FLOPPY, USING THE FDC AND THE FGA-002
* DMA CHANNEL
*---------------------------------------------------------------
:
BSET #$07,PI_T1+PBDR(A4) ;SELECT DMA WORKS WITH FDC
BSET #$06,PI_T1+PBDR(A4) ;SELECT TRANSFER FDC TO DMA
* THE FOLLOWING AUX VALUES ARE FOR CPU-30 ONLY !!!
MOVE.B #$00,FGA02+AUXPINC ;AUX PIN CONTROL
MOVE.B #$07,FGA02+AUXSST ;AUXSRCSTART
MOVE.B #$03,FGA02+AUXSTE ;AUXSRCTERM
MOVE.B #$0F,FGA02+AUXSRCW ;AUXSRCWEX
MOVE.L #BCOUNT,FGA02+DMABCNT ;BYTE COUNT
MOVE.L #DADDR,FGA02+DMADADR ;DESTINATION ADDRESS
MOVE.B #$C8,FGA02+DMASATR ;DMA SOURCE ATTRIBUTE (AUX)
MOVE.B #$C5,FGA02+DMADATR ;DMA DEST ATTRIBUTE (DPR)
MOVE.B #$81,FGA02+DMAGEN ;DMA GENERAL CONTROL
MOVE.B #$01,FGA02+DMARUNC ;START DMA CONTROLLER
MOVE.B #$88,FDC+FCMDREG ;READ SECTOR COMMAND
BCLR #$00,PI_T2+PCDR ;SET TO DMA ACTIV
WAIT TST.B FGA02+DMARUNC ;WAIT UNTIL DMA IS READY
BMI.S WAIT
BSET #$05,PI_T2+PCDR ;SET TO CPU ACTIVE
:
Signal
VME P2 Connector
Содержание SYS68K/CPU-30 R4
Страница 41: ...Installation SYS68K CPU 30 R4 Technical Reference Manual Page 28...
Страница 127: ...Hardware Description SYS68K CPU 30 R4 Technical Reference Manual Page 114...
Страница 130: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 117 4 2 1 RTC 72421...
Страница 131: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 118 4 2 2 DUSCC 68562...
Страница 132: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 119 4 2 3 PI T TS68230...
Страница 133: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 120 4 2 4 SCSI 87033 34...
Страница 134: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 121 4 2 5 FDC37C65C...
Страница 135: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 122 4 2 6 LANCE Am79C90...
Страница 136: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 123 4 2 7 SIA Am7992B...
Страница 137: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 124 4 2 8 Motorola MC68030 and MC68882...
Страница 145: ...VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 132...
Страница 189: ...Appendix to VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 176...