|===============SETUP===============
|-----Simulator Settings-----
delete_signals    | delete any existing waveforms in the window
clpr sim_out.out  | clear the output file
restart           | restart to time zero
set_mode functional

|-----Vectors-----
| Assign names to groups of related signals here.  Also, you can specify
| the radix/base in which to display these signals.

vector PADCOM PADCOM[1:0]
vector XBUS PADXDATA[3:0]
vector DATABUS DATABUS[3:0]
vector READDATA READDATA[7:0]
vector WRITEDATA WRITEDATA[7:0]
vector ADDRESS ADDRESS[15:0]

|-----Watch Statements-----
| List any signals you want to see in the waveform viewer, or which you
| want to output to a file.

watch RST CLK NEWCMD PADSTROBE
watch READMEM READREG WRITEMEM WRITEREG
watch BUSY XBUSY
watch LDREADDATA  ENREADDATA SHREADDATA SHADDR SHDATA

|-----Clock Settings----- 
| Setup various clock signals.  Also, can specify their shape and timing.
stepsize 20ns   | This gives a clock period of 40ns
clock CLK 0 1

|===============SIMULATION===============
|
| The following commands will be useful:
|   'assign' - to assign values to pins/wires (use 'release' to stop
|                driving a signal)

assign PADSTROBE 0
assign PADCOM 00\B
assign BUSY 0
assign XBUS 0\H
assign READDATA 00\H
assign RST 1		| RESET
sim 40ns
assign RST 0
sim 40ns
assign PADCOM 01\B		| ADDR
assign XBUS F\H		| Nibble 0 of 6DEF address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS E\H		| Nibble 1 of address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS D\H		| Nibble 2 of address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 6\H		| Nibble 3 of address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign PADCOM 10\B		| WRITE
assign XBUS 1\H		| Low nibble of 21
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 2\H		| High nibble
sim 120ns
assign PADSTROBE 1
sim 80ns
assign BUSY 1		| Write port busy
assign PADSTROBE 0
sim 200ns
assign BUSY 0
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 3\H		| Next write: low nibble of 43
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 4\H		| High nibble
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 5\H		| Next write: low nibble of 65
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 6\H		| High nibble
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns

assign PADCOM 01\B		| Start a new ADDR
assign XBUS 7\H		| Nibble 0 of 4567 address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 6\H		| Nibble 1 of address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 5\H		| Nibble 2 of address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign XBUS 4\H		| Nibble 3 of address
sim 120ns
assign PADSTROBE 1
sim 120ns
assign PADSTROBE 0
sim 120ns
assign PADCOM 11\B		| READ
release XBUS     	| Micrcontroller tristates pad signals
sim 120ns
assign PADSTROBE 1
sim 80ns
assign BUSY 1		| Read port busy
assign PADSTROBE 0
sim 200ns
assign BUSY 0
assign PADSTROBE 1
assign READDATA CD\H  | Read value - low nibble transfered
sim 120ns
assign PADSTROBE 0
sim 120ns
assign PADSTROBE 1	| transfer high nibble
sim 120ns
assign PADSTROBE 0	| 
sim 120ns
assign PADSTROBE 1  | Read next address
assign READDATA A9\H  | Next read value - low nibble
sim 120ns
assign PADSTROBE 0  | 
sim 120ns
assign PADSTROBE 1  | high nibble
sim 120ns
assign PADSTROBE 0  | high nibble
sim 120ns
assign PADSTROBE 1  | high nibble
sim 120ns
assign PADSTROBE 0  | high nibble
sim 200ns
sim 80ns
sim 80ns

quit