A1-12
G8 CPCI Enclosure User’s Guide
Appendix 1 - Technical Reference
Floppy Disk Drive,
DSKCHG_
Indicates the drive door has
TTL levels
been opened
DIR_
Controls direction of the head
during step operations
DRVDENS[1:0] Disk density select communication
DS[1:0]_
Drive selects
HDSL_
Selects top or bottom side head.
INDEX_
Indicates the beginning of a track
MTR[1:0]
Motor enables
RDATA_
Data read
STEP_
Step, pulses move head in or out
TR0_
Indicates that head is positioned
above track 00
WDATA_
Write data to drive
WGATE_
Enables head write circuitry of
drive
WPROT_
Indicates a disk is write-protected
EIDEa (ATA-2)
IOCS16_
Indicates a 16 bit register has been
decoded
DMARQ
Drive DMA request
DMAK_
Drive DMA acknowledge
DIOR_
Drive I/O read
DIOW_
Drive I/O write
DASP_
Drive active slave present
IORDY
Indicates drive is ready
for I/O cycle(s)
DD[15:0]
Drive data lines, bits 15--0
DRESET_
Reset signal to drive
CS1FX_
Chip select drive 0, also
command register block select
CS3FX_
Chip select drive 1, also
command register block select
DA[2:0]
Drive register and data port
address lines
INTRQ
Drive interrupt request
PDIAG_
Passed diagnostics output from
drive 1 and monitored by drive 0
Содержание G8
Страница 1: ...G8 CPCI Enclosure User s Guide G8 8 Slot CompactPCI Enclosure User s Guide 095 30004 00 Rev A ...
Страница 8: ...iv Table of Contents This page was intentionally left blank G8 CPCI Enclosure User s Guide ...
Страница 12: ...1 4 Chapter 1 Introduction G8 CPCI Enclosure User s Guide This page was intentionally left blank ...
Страница 20: ...2 8 G8 CPCI Enclosure User s Guide Chapter 2 Hardware This page was intentionally left blank ...
Страница 26: ...4 4 This page was intentionally left blank Chapter 4 Drive Bays G8 CPCI Enclosure User s Guide ...