EV6021 Datasheet, PDF (25/28 Pages) CML Microcircuits – User Manual

Evaluation Kit for CMX602B
EV6021
c) The "blank check" command (B) only looks at the first location. A programmed device will
always have data in this location as it is the program start address.
d) For each of the commands B,P,R and V the user will be prompted to manually reset the
target µC, by pressing the RESET switch (SW5) on the EV6021 Evaluation Board. This is
because PIC programming always starts from location 0000 and the program counter can only
be incremented.
e) Pressing A will display the program data in the bottom window, formatted in pages of 48
consecutive locations. Use the <PageUp> and <PageDown> keys to scroll through the data.
Pressing <Esc> will return the user to the >ok prompt.
TO LEAVE PROGRAMMING MODE
(a) Remove power from board (including the programming voltage, V_PP).
(b) Set switch, SW6, to ‘OP’.
(c) Power up board as described in previous sections for normal operation.
1.6.4.2 DTMF Generator
For anyone wishing to write their own code for the EV6021 the code table for the DTMF generator,
U5, is as follows:
DTMF GENERATOR DECODE TABLE
pin 12 (D3) pin 11 (D2) pin 10 (D1)
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
pin 9 (D0)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
DTMF
CODE
D
1
2
3
4
5
6
7
8
9
0
*_#
A
B
C
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25
UM6021/4