EV8680 Datasheet, PDF (32/39 Pages) CML Microcircuits – Evaluation Kit

Evaluation Kit for CMX868
EV8680
Test 4
Description : Instructs EV8680 to go off-hook and transmit V.23 continuous 1s at 75bps.
Command : ATH1@RE1=19995<CR>
H1 : Take EV8680 Off-Hook
@RE1=19995 : Load 4E1B Hex into CMX868 Tx Mode Register ($E1)
Tx Mode Register ($E1) = 4E1B Hex
B15
B14
B13
B12
0
1
0
0
Tx Mode = V.23 FSK 75 bps
B11
B10
B9
1
1
1
Tx Level = 0dB
B8
B7
0
0
No
Guard Tone
B6
B5
0
0
Scrambler
Disabled
B4
B3
1
1
Sync Mode
B2
B1
B0
0
1
1
Tx Cont 1’s
Test 5
Description : Instructs EV8680 to go off-hook and transmit two DTMF digits (‘A’ then ‘B’ with
100ms duration/separation).
Command : ATH1@RE1=7709@F2@RE1=7680@F2@RE1=7710@F2@RE1=7680<CR>
H1 : Take EV8680 Off-Hook
@F2 : 100ms Delay
@RE1=7709 : Load 1E1D Hex into CMX868 Tx Mode Register ($E1)
@RE1=7680 : Load 1E00 Hex into CMX868 Tx Mode Register ($E1)
@RE1=7710 : Load 1E1E Hex into CMX868 Tx Mode Register ($E1)
Tx Mode Register ($E1) = 1E1D Hex
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
1
Tx Mode = DTMF/Tones
Tx Level = 0dB
Unused
Tx DTMF ‘A’
Tx Mode Register ($E1) = 1E00 Hex
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
Tx Mode = DTMF/Tones
Tx Level = 0dB
Unused
Tx No Tone
Tx Mode Register ($E1) = 1E1E Hex
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
Tx Mode = DTMF/Tones
Tx Level = 0dB
Unused
Tx DTMF ‘B’
Test 6
Description : Set up CMX868 for receiving DTMF, then wait for five DTMF digits.
Command : AT@RE0=5953@RE2=7681@RE6?@F7@F7@F7@F7@F7<CR>
@RE0=5953 : Load 1741 Hex into CMX868 General Control Register ($E0)
@RE2=7681 : Load 1E01 Hex into CMX868 Rx Mode Register ($E2)
@RE6? : Read and display contents of CMX868 Status Register ($E6)
@F7 : Wait until IRQN output goes low then read and display contents of
CMX868 Status Register ($E6)
General Control Register ($E0) = 1741 Hex
B15 B14 B13
B12
B11
0
0
0
1
0
11.0592
No
Xtal
LB
B10
1
Equ
Disable
B9
1
Off
Hook
B8
1
Powered
Up
B7
0
Norm
B6
1
IRQN
O/P
Enabled
B5 B4 B3 B2 B1 B0
0
0
0
0
0
1
DTMF Detect IRQ Mask
Rx Mode Register ($E2) = 1E01 Hex
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
Rx Mode = DTMF/Tones
Rx Level = 0dB
Detect DTMF
© 2000 Consumer Microcircuits Limited
32
UM8680/2