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- ======================================================================
- PALASM 4 (Version 1.1) Release Notes
- ----------------------------------------------------------------------
-
- Check the On-Line documentation under 'Index of topics' for further
- information.
-
- Contents of this README file:
-
- 1. PALASM 4 (Version 1.1) New Features Summary.
- 2. LATCH operation on the MACH210.
- 3. PRELOAD / OBSERVABILITY on MACH110 and MACH210.
- 4. OrCAD/SDT version 4.0 not supported.
- 5. Deleting previous versions of PALASM.
- 6. Communication program (PC2.EXE) problems.
- 7. Printing on HP Laserjet printers.
- 8. PC's verified as supported.
-
- =====================================================================
- PALASM 4 (Version 1.1) New Features Summary
- ---------------------------------------------------------------------
- 1. Full support for the MACH210.
- 2. Extended memory support for large designs.
- 3. Support of PAL24V10 and PAL16V8HD devices.
- 4. Option for the simulator to directly read MACH pin/node placement.
- 5. Addition of 2 new simulation commands, CHECKQ, TEST.
- 6. Option to allow IF-THEN-ELSE or CASE default to assume OFF condition.
-
- =====================================================================
- LATCH operation on the MACH210
- ---------------------------------------------------------------------
- In the PALASM 4 Version 1.0 software the latch operation on the MACH210
- device was modelled incorrectly. It was initially assumed that the latch
- operated as an active high latch enable, (ie. latch is transparent when
- enable = HIGH). On further investigation it was found that the latch was
- built as an active low latch in the silicon, (ie. latch is transparent when
- enable = LOW).
-
- Because of this, additional primitives have been added to the OrCAD macro
- library. Previously designed schematics using an active high latches are now
- modelled active high through combinatorial logic. Only if you use the active
- low latch primitives will the PALASM software program the flipflop directly
- to a latch function.
-
- The PALASM software simulator has been changed to recognize that the MACH 2
- family of devices have active low latches.
-
- =====================================================================
- PRELOAD / OBSERVABILITY on MACH110 and MACH210
- ---------------------------------------------------------------------
- PALASM 4 simulation has been setup to use the 'B' vector for preload and the
- 'T' vector for observability as defined in the JEDEC 3B standard. At the
- time of this release these functions were not yet supported by the
- programmers and therefore could not be verified. For this release the TEST
- command is interpreted as a CHECKQ command, no 'T'vector is output to the
- JEDEC file. The PRELOAD command is disabled. If encountered in the PALASM
- simulation test sequence the software will stop generating any further JEDEC
- test vectors. The JEDEC file will still be valid up to the first PRELOAD
- statement, the simulation history file will still map the entire correct
- simulation results.
-
- =====================================================================
- OrCAD/SDT version 4.0 not supported.
- ---------------------------------------------------------------------
- Changes within the latest OrCAD/SDT software (version 4.0) have invalidated
- the software integration between PALASM 4 and OrCAD/SDT. Currently the
- PALASM 4 software will work only with versions later than 3.21 of the
- OrCAD/SDT III software.
-
- =====================================================================
- Deleting previous versions of PALASM
- ---------------------------------------------------------------------
- It is strongly recommended that you delete any old versions of PALASM
- software before installing this new release. Because the mechanisms to
- run PALASM are very similiar, switching between different versions may
- corrupt the system files used by both and prevent them from operating
- correctly.
-
- If you are installing on top of an old version of PALASM there are
- files that can be deleted from the older version which would not be
- used by this new software. Deleting the older PALASM version before
- installing will also free up disk space.
-
- =====================================================================
- Communication program (PC2.EXE) problems
- ---------------------------------------------------------------------
- The communication program (PC2.EXE) supplied with the PALASM 4
- software does not work with the DATAIO Unisite programmer. We recommend you
- use DATAIO's communication program VTERM.EXE.
-
- You may install this VTERM.EXE in the menu by editing the communication
- programmer field in the 'FILE/SET UP/WORKING ENVIRONMENT...' menu
- option.
-
- =====================================================================
- Printing on HP Laserjet printers
- ---------------------------------------------------------------------
- Most PALASM 4 output is standard ASCII text, the exception to this is
- the printing of waveforms.
-
- Waveform output uses special extended ASCII IBM graphic characters to
- generate the lines. In order to print waveform output, your printer
- must be capable of printing the line draw character set. On the
- earlier HP laserjet printers this was accomplished by using a
- supplemental font cartridge (eg. cartridge number HP3659A).
-
- =====================================================================
- PC's verified as supported.
- ---------------------------------------------------------------------
-
- Standard Memory Usage
- ---------------------
- COMPAQ 386
- COMPAQ 386 /20 portable
- COMPAQ 286 / portable III
- COMPAQ 386 / portable III
- DOSTECH Systems 386
- EVEREX Step 386 /25
- EVEREX Step 386 /33
- GLI 386
- IBM XT / AT
- IBM PS2 / Model 70 (386)
- WESTWIND AT
- WYSE PC 286
- WYSE PC 386
- ZENITH Turbosport 386 portable
-
- note: This is only a list of PC's qualified by AMD and not
- intended as an exclusive list.
-
-