604-00030 Parallax Inc, 604-00030 Datasheet - Page 9

• Manufacturer Part Number: 604-00030
• Description: IC FLOATING-POINT COPROC V2 8DIP
• Manufacturer: Parallax Inc

Specifications of 604-00030

• Processor Type: Floating-Point Co-Processor
• Voltage: 4.75 V ~ 5.25 V
• Mounting Type: Through Hole
• Package / Case: *
• Product: Microcontroller Accessories
• 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 is reset and the serial interface is enabled the following message is displayed:
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 opcode
The Break command is used to interrupt operation of the uM-FPU. The break will not occur until after the next
opcode that is not a SELECTA or SELECTB is executed by the uM-FPU. The debug monitor displays the hex value
of the last opcode executed and any additional data. Entering another Break command, or simply pressing the return
key, will single step to the next opcode. Entering the Go command
will continue execution.
Go – continue execution
The Go command is used to continue normal execution after a Break command.
Micromega Corporation
{RESET}
B
G
R
T
V
/
$C
$D
$M
$P
>B
{BREAK}
>
{BREAK}
>
{BREAK}
>
02 51
{BREAK}
>G
53
F6:0028
80
Break
Go
Register
Trace
Version
Comment
Checksum
Display
Mode
Program
stop execution after next opcode
continue execution
display registers
toggle trace mode on/off
display version information
add comment to debug trace
display checksum value
display user function memory
set mode parameters
program user function memory
(i.e. SET R3)
(i.e. LOADWORD $0028)
(i.e. FMUL R0)
(i.e. SELECT R2; SET R1)
9
uM-FPU V2 Datasheet
Debug Monitor