!!!!    6    0    1  989956214  Vb9e7                                         

! Device           : 2564
! Function         : uv_prom 8k x 8
! revision         : B.01.00
! safeguard        : med_out_mos
! Modifications    : Modified for AwareTest xi
!
  warning           "This library has not been verified with hardware."

sequential

vector cycle  800n
receive delay 700n  ! tAA = 450ns

!  Note:  Pins 28 and 26 are internally connected; either or
!    both may be used for supplying +5 volts.  Pin 28 is assumed
!    to be used for this test, while pin 26 is non-digital.
!
assign    VCC         to pins   28     ! +5 volts
assign    Extra_VCC   to pins   26     ! Not used in this test
assign    GND         to pins   14     ! VSS

assign    Address   to pins   23,20,21,24,25
assign    Address   to pins   3,4,5,6,7,8,9,10

assign    Output    to pins   19,18,17,16,15,13,12,11
assign    Data_D0   to pins   11   !AT Added for minimum pin test.
assign    Data_D1   to pins   12   !AT Added for minimum pin test.
assign    Data_D2   to pins   13   !AT Added for minimum pin test.
assign    Data_D3   to pins   15   !AT Added for minimum pin test.
assign    Data_D4   to pins   16   !AT Added for minimum pin test.
assign    Data_D5   to pins   17   !AT Added for minimum pin test.
assign    Data_D6   to pins   18   !AT Added for minimum pin test.
assign    Data_D7   to pins   19   !AT Added for minimum pin test.

assign    Chip_select_bar     to pins   27,2    ! CS2_bar, CS1_bar
assign    PD_PGM_bar          to pins   22
assign    VPP                 to pins   1

family    TTL

power     VCC, GND

inputs    Address, Chip_select_bar, PD_PGM_bar

outputs   Output
outputs   Data_D0, Data_D1, Data_D2, Data_D3 !AT Added for minimum pin test.
outputs   Data_D4, Data_D5, Data_D6, Data_D7 !AT Added for minimum pin test.

nondigital  VPP, Extra_VCC

when      Chip_select_bar  is  "1x" inactive Output
when      Chip_select_bar  is  "x1" inactive Output
when      PD_PGM_bar       is  "1"  inactive Output

trace    Output   to Address,Chip_select_bar,PD_PGM_bar

disable   Output    with  Chip_select_bar    to  "1x"
disable   Output    with  Chip_select_bar    to  "x1"
disable   Output    with  PD_PGM_bar         to  "1"

!***************************************************************
!***************************************************************

vector  Address_counter
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Output              to   "00000000"
     upcounter  Address
end vector

vector  Address_counter_2
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "1111111111111"
     set  Output              to   "00000000"
     downcounter  Address
end vector

vector  Read_deselected_1
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "01"
     set  Address             to   "0000000000000"
     set  Output              to   "11111111"
end vector

vector  Read_deselected_2
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "10"
     set  Address             to   "0000000000000"
     set  Output              to   "11111111"
end vector

vector  Read_powered_down
     set  PD_PGM_bar          to   "1"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Output              to   "11111111"
end vector

!AT The following vectors have been added for a minimum pins test. Any
!AT vectors that references the data bus was copied and modified to reference
!AT only a single pin of the data bus.

vector  Address_counter_D0
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D0             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D1
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D1             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D2
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D2             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D3
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D3             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D4
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D4             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D5
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D5             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D6
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D6             to   "0"
     upcounter  Address
end vector

vector  Address_counter_D7
     set  PD_PGM_bar          to   "0"
     set  Chip_select_bar     to   "00"
     set  Address             to   "0000000000000"
     set  Data_D7             to   "0"
     upcounter  Address
end vector

!***************************************************************
!***************************************************************

!AT The following AwareTest units have been added for minimum pins tests. Each
!AT unit tests a separate data pin starting with D0.

unit "awaretest D0 Test"
     preset counter  Address_counter_D0     compress
     repeat  255  times
          count      Address_counter_D0     compress
     end repeat
end unit

unit "awaretest D1 Test"
     preset counter  Address_counter_D1     compress
     repeat  255  times
          count      Address_counter_D1     compress
     end repeat
end unit

unit "awaretest D2 Test"
     preset counter  Address_counter_D2     compress
     repeat  255  times
          count      Address_counter_D2     compress
     end repeat
end unit

unit "awaretest D3 Test"
     preset counter  Address_counter_D3     compress
     repeat  255  times
          count      Address_counter_D3     compress
     end repeat
end unit

unit "awaretest D4 Test"
     preset counter  Address_counter_D4     compress
     repeat  255  times
          count      Address_counter_D4     compress
     end repeat
end unit

unit "awaretest D5 Test"
     preset counter  Address_counter_D5     compress
     repeat  255  times
          count      Address_counter_D5     compress
     end repeat
end unit

unit "awaretest D6 Test"
     preset counter  Address_counter_D6     compress
     repeat  255  times
          count      Address_counter_D6     compress
     end repeat
end unit

unit "awaretest D7 Test"
     preset counter  Address_counter_D7     compress
     repeat  255  times
          count      Address_counter_D7     compress
     end repeat
end unit

!  The data in the first 512 addresses and in the last 512 addresses
!  are compressed and the result is compared with that learned from
!  a known good device.  More of the data can be tested by increasing
!  the value of the loop counters, which also increases test time.
!  Setting the repeat loops to 4095 causes data from all addresses
!  to be compressed, but results in a test time of almost 14ms.

unit "Compress data"
     preset counter  Address_counter     compress
     repeat  511  times
          count      Address_counter     compress
     end repeat

     preset counter  Address_counter_2   compress
     repeat  511  times
          count      Address_counter_2   compress
     end repeat
end unit

!  If PULL-UPS exist on the outputs AND the data in the first
!  address is NOT all 1's, the following unit can be included
!  to verify that CS1_bar is not stuck-at-0.
!
!unit "Deselect 1"
!     execute  Read_deselected_1
!end unit

!  If PULL-UPS exist on the outputs AND the data in the first
!  address is NOT all 1's, the following unit can be included
!  to verify that CS2_bar is not stuck-at-0.
!
!unit "Deselect 2"
!     execute  Read_deselected_2
!end unit

!  If PULL-UPS exist on the outputs AND the data in the first
!  address is NOT all 1's, the following unit can be included
!  to verify that PD_PGM_bar is not stuck-at-0.
!
!unit "Power down"
!     execute  Read_powered_down
!end unit

!    End of test