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VM162/VM172
Chapter 2 Functional Description
Juli 23, 1997
Page 2- 17
© PEP Modular Computers
Register Description
Name
Value
Access
Description
WDG
bit 7
BERR2
bit 6
BERR1
bit 5
EN_WDG
bit 4
TR_WDG
bit 3
EN_BERR1
bit 2
ACFAIL
bit 1
LED_G
bit 0
1
1
1
1
1
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Set by watchdog timer when timeout has been reached.
Used to differentiate between resets caused by the
watchdog and resets caused by the reset button (power up
resets can be identified within the 68EN360).
Set by VMEbus BUS monitor when timeout has been
reached. Used to identify BERR caused by this timer (see
also VMEbus Control/Status Register).
Set by on-board bus error timer when timeout has been
reached. Used to identify BERR caused by this timer.
Enable the watchdog timer. It can only be set once, and
remains enabled until the next reset.
Triggers the watchdog timer. Watchdog timeout=512ms.
Enables the on-board bus error timer. It also monitors all
on-board I/O cycles, including the time from the VMEbus
request to the VMEbus grant. Timeout=8
µ
s.
VME ACFAIL signal latched when active in order to
distinguish between a level 7 NMI from an ABORT or
ACFAIL.
Enables the green ‘general purpose’ front panel LED.
Содержание VM162
Страница 2: ......
Страница 6: ...VM162 VM172 Table of Contents Page TOC 4 PEP Modular Computers Juli 23 1997 ...
Страница 7: ...VM162 VM172 Juli 23 1997 Page 0 1 PEP Modular Computers Preface ...
Страница 12: ...VM162 VM172 Chapter 1 Introduction Page 1 2 PEP Modular Computers Juli 23 1997 ...
Страница 22: ...VM162 VM172 Chapter 1 Introduction Page 1 12 PEP Modular Computers Juli 23 1997 1 9 Schematic Board Layout ...
Страница 62: ...VM162 VM172 Chapter 3 Configuration Page 3 2 PEP Modular Computers Juli 23 1997 ...
Страница 72: ...VM162 VM172 Chapter 4 Programming Page 4 2 PEP Modular Computers July 19 1997 ...
Страница 102: ...Appendix Bootstrap Loader Page BOOT 10 PEP Modular Computers Juli 23 1997 This page has been intentionally left blank ...
Страница 110: ...Appendix OS 9 Cabling Page OS 2 PEP Modular Computers Novemeber 21 1996 1 1 3 6 pin RJ12 Connector on OS 9 Side ...
Страница 117: ...3 OS 9 System Modem 3 1 15 pin Connector 3 2 8 pin RJ45 Connector SMART I O ...
Страница 119: ...4 2 Hardware Handshake 4 2 1 15 pin Connector 4 2 2 8 pin RJ45 Connector SMART I O ...
Страница 120: ...Appendix OS 9 Cabling Page OS 12 PEP Modular Computers Novemeber 21 1996 This page has been intentionally left blank ...