EV8680 Datasheet, PDF (23/39 Pages) CML Microcircuits – Evaluation Kit

Evaluation Kit for CMX868
Reg Range Units
Description
‘0’
S25 0-255 Decimal Bit Mapped register - Provides the following
176
functions:
Bit 0, 1, 2 - CMX868 Tx Gain (used during
negotiation, data transfer and BERT),
111 0dB, 110 -1.5dB, 101 -3.0dB, 100 -
4.5dB, 011 -6dB, 010 -7.5dB, 001 -
9.0dB, 000 -10.5dB
Bit 3, 4, 5 - CMX868 Tx Data/Stop bits
(used during data transfer), 111 8/2 bits,
110 8/1 bits, 101 7/2 bits, 100 7/1 bits,
011 6/2 bits, 010 6/1 bits, 001 5/2 bits,
000 5/1 bits
Bit 6, 7 - CMX868 Tx Start-stop mode (used
during data transfer), 00 Odd parity, 01
Even parity, 10 No parity
S26 0-255 Decimal Bit Mapped register - Provides the following
48
functions:
Bit 0, 1, 2 - CMX868 Rx Gain (used during
negotiation, data transfer and BERT),
111 0dB, 110 -1.5dB, 101 -3.0dB, 100 -
4.5dB, 011 -6dB, 010 -7.5dB, 001 -
9.0dB, 000 -10.5dB
Bit 3, 4, 5 - CMX868 Rx Data and Parity bits
(used during data transfer), 111 8 data +
parity, 110 8 data, 101 7 data + parity,
100 7 data, 011 6 data + parity, 010 6
data, 001 5 data + parity, 000 5 data
Bit 6, 7 - CMX868 Rx USART (used during
data transfer), 00 2.3% overspeed, 01
1% overspeed, 10 No overspeed
S27 0-255 Decimal Bit Mapped register - Provides the following
0
functions:
Bit 0, 1, 2, 3 - Reserved.
Bit 4, 5, 6, 7 - Communication Standard,
0000 (ATB0), 0001 (ATB1), 0010
(ATB2), 0011 (ATB3), 0100 (ATB4),
0101 (ATB5), 0110 (ATB6), 0111
(ATB7), 1000 (ATB8), 1001 (ATB9)
S28 0-255 Decimal Reserved
0
S29 0-255 Decimal Reserved
0
EV8680
‘1’
176
176
0
0
0
© 2000 Consumer Microcircuits Limited
23
UM8680/2