MAS9191EB MAS, MAS9191EB Datasheet - Page 3

• Manufacturer Part Number: MAS9191EB
• Description: EVALUATION BOARD
• Manufacturer: MAS

EVALUATION SOFTWARE
Pressing “#" will display instructions for the keys
shown on the LCD. Press EXIT to return to the main
menu.
The FORWARD and BACKWARD keys will select
“register read”, “register write”, “message send” or
“message read”. The given function is executed by
pressing ENTER.
When entering this function the register address will
be shown at the top right. After entering the write
function, pressing “#' will automatically set the default
values (gain controls at nominal levels and necessary
switches in proper positions) to measure the transmit
and receive frequency responses. The register
address can be changed with the FORWARD and
BACKWARD keys. The lower line will show
current contents of the register. Press EXIT to return
to the main menu. The ENTER key will remove the
brackets around the register address and the cursor
will move to the first nibble of the hex byte on the
lower line. The UP and DOWN keys will increment or
decrement the nibble. If the value of the register has
been changed there will be an asterisk next to the
register address. The FORWARD and BACKWARD
keys will move the cursor left and right, respectively.
When the cursor points to a bit of a register the
TOGGLE key will change the value of the bit. After a
bit has been edited the top line will display the function
of the bit. The ENTER key will write any new values to
the MAS9191A. Press EXIT to exit from the editing
mode. If the function is terminated without writing any
new values, the previous values are retained.
This function is quite similar to the register write
function. The register address is selected with
FORWARD and BACKWARD keys from the main
menu. The register can be read with the ENTER key.
Pressing the ENTER key a second time will update
the contents of the status register. The FORWARD
and BACKWARD keys will move the cursor and
display the function of each bit. Return to the top line
or to the main menu with the EXIT key.
This function waits for 10 messages to be received.
When the messages are received they can be
examined with the FORWARD and BACKWARD
keys. The function can be terminated with the EXIT
key. An >N= in the upper right hand corner indicates
NAMPS mode.
In this function six messages can be entered. First the
desired message number must be chosen with the
FORWARD and BACKWARD keys. Then the ENTER
key will advance to the edit mode. With the
FORWARD and BACKWARD keys the nibbles of
each byte can be chosen and the value incremented
Help
Main menu
Register write
Register read
Message receive
Message send
the
or decremented with the UP and DOWN keys. The
ENTER key will store the message into memory. The
EXIT key will move the cursor to the upper row. After
all messages are edited the LCD reads "SEND
MESSAGES". The ENTER key will move the cursor to
the lower row and the FORWARD and BACKWARD
keys will choose the message. The TOGGLE key will
alternate between the plus and minus signs. The plus
sign indicates that the message will be transmitted.
When all messages are chosen the ENTER key will
start the transmission, and may be done repeatedly.
The transmission can be terminated with the EXIT
key. An >N= in the upper right hand corner indicates
NAMPS mode.
The 68HC11 micro controller can be reset with the
reset button, with DTR or by switching power off and
on. In the last case the voltage regulator internal reset
circuit will perform the reset. When the MOD jumper is
open the controller executes the software from the
FLASH ROM. When the jumper is closed the
controller enters the boot-strap mode after reset. In
this mode the software which contains the hl.exe
program can be loaded into the FLASH ROM or
SRAM through the RS-232-C interface. The syntax of
the software is:
Where X is the serial port number: 1 for COM1 and 2
for COM2 and the file name is the same as the
S-record file without the extension. For downloading
the serial cable with the following connections are
needed:
More information about the 68HC11 is available from
the reference manual.
P9 contains six inputs to the micro controller port PE.
These inputs can be used as digital inputs or as
analog inputs for the A/D-converter.
When the micro controller is writing to address
0x1FFC and 0x1FFD the data is also written to the
LCD command register. Write cycles to memory
address 0x1FFD also change the state of the port at
0x1FFE. The port has eight outputs, ground and
supply voltage. The maximum load for the power
supply pin is 20 mA when operating at 3V. Keypad
interface is done with port PA. Pins PA0, PA1 and
PA2 are inputs from the 4x3 keypad and pins
PA3-PA6 are outputs to the matrix. PA7 is the output
pulse for MAS9129 watchdog circuit. All PA outputs
are driven with the external buffer IC3.
Micro Controller and Interfaces
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MAS9191A
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DA9191EB.006
June 30,1997
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