604-00050 Parallax Inc, 604-00050 Datasheet - Page 11

• Manufacturer Part Number: 604-00050
• Description: IC FLOATING-PT COPROC V3 18-DIP
• Manufacturer: Parallax Inc

Specifications of 604-00050

• Processor Type: Floating-Point Co-Processor
• Voltage: 2.7V ~ 5.5V
• Mounting Type: Through Hole
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Speed: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Debug Monitor
The built-in Debug Monitor provides support for displaying the contents of uM-FPU registers, tracing the execution
of uM-FPU instructions, setting breakpoints for debugging, and programming user functions. Whenever the uM-
FPU V3.1 chip is reset and debug mode is enabled, the following message is sent to the serial output (SEROUT pin):
Commands are specified by typing an uppercase or lowercase character followed by a return key. The command is
not processed (or echoed) until the return key is pressed. Once the return key is pressed, the command prompt and
command are displayed, and the command is executed. If the command is not recognized, a question mark is
displayed. Special commands are prefixed with a dollar sign. These commands are used to program the user
functions and to check the contents of the uM-FPU. They are not generally used when debugging a running
application. The $M and $P will reset the uM-FPU on completion. The commands are listed below:
Break – stop execution after next instruction
The Break command is used to interrupt operation of the uM-FPU. The break will not occur until after the next
instruction is executed by the uM-FPU. The debug monitor displays the hex value of the last instruction executed
and any additional data. Entering another Break command, or simply pressing the return key, will single step to the
next instruction. Entering the Go command will continue execution. Note: the uM-FPU V3 IDE includes a
disassembler that translates the trace bytes into a readable instruction sequence.
Micromega Corporation
{RESET}
B
E
F
G
R
S
T
V
X
/
$C
$M
$P
$S
{BREAK}
>
{BREAK}
>
{BREAK}
>
{BREAK}
>
{BREAK}
>
0103
2001
3702
2403
Break
EEPROM
Flash
Go
Register
String
Trace
Version
Change
Comment
Clock
Mode
Program
Checksum
stop execution after next instruction
display EEPROM memory
display Flash stored function memory
continue execution
display registers
display string, length and selection point
toggle trace mode on/off
display version information
displays all register that have changed
add comment to debug trace
select clock source
set mode parameters
program user function memory
display checksum value
(i.e. SELECTA,3)
(i.e. FSET,1)
(i.e. FDIVI,2)
(i.e. FMUL,3)
11
uM-FPU V3.1 Datasheet
Debug Monitor