DB829 Datasheet, PDF (7/29 Pages) CML Microcircuits – Low Voltage Operation

Baseband Signal Processor
7
5. Software Description
MX829 PRELIMINARY INFORMATION
5.1 Address/Commands
Instructions and data are transferred, via "C-BUS", in accordance with the timing information given in Figure 14.
Instruction and data transactions to and from the MX829 consist of an Address/Command (A/C) byte followed by either:
1. a further instruction or data (1 or 2 bytes)
2. a status or Rx data reply (1 byte)
5.1.1 8-bit Write Only Registers
HEX
ADDRESS/
COMMAND
$01
$10
$11
$13
$40
$43
REGISTER
NAME
BIT 7
(D7)
BIT 6
(D6)
BIT 5
(D5)
BIT 4
(D4)
BIT 3
(D3)
BIT 2
(D2)
BIT 1
(D1)
BIT 0
(D0)
RESET
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
CONTROL 1
AMP1
AMP2
AUDIO MSKRX MSKTX UK/F
MIC
B/W
CONTROL 2 CHKSUM DTMFEN DTMFHI DTMFLO DTMF3 DTMF2 DTMF1 DTMF0
AUDIO
<-------------------------- GAIN -------------------------->
ATTENUATION
0
0
0
BIT 4
BIT 3
BIT 2 BIT 1 BIT 0
CONTROL 3/
IRQ ENABLE
0
1200/2400 TXIDLEM RXDATAM TXDATAM RX SYNC SYNT SYNC
WORD ^{PRIME PRIME}
PRIME
TXDATA
<----------------------------------------------- TXDATA ----------------------------------------------->
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2 BIT 1 BIT 0
5.1.2 16-bit Write Only Registers
HEX
ADDRESS/
COMMAND
$12
REGISTER
NAME
MOD LEVELS
(1)
(2)
$44
RX SYNC
WORD (1)
(2)
BIT 7
(D7)
BIT 6
(D6)
BIT 5
(D5)
BIT 4
(D4)
BIT 3
(D3)
BIT 2
(D2)
BIT 1
(D1)
BIT 0
(D0)
MOD 1
<-------------------------- MOD 1 -------------------------->
0
0
ENABLE BIT 4
BIT 3
BIT 2 BIT 1 BIT 0
0
0
<-------------------------- MOD 2 -------------------------->
0
BIT 4
BIT 3
BIT 2 BIT 1 BIT 0
<------------------------------------------- RX SYNC WORD ----------------------------------------->
BIT 15
BIT 14
BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 BIT 8
<------------------------------------------- RX SYNC WORD ----------------------------------------->
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2 BIT 1 BIT 0
© 1998 MX•COM Inc.
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Doc. # 20480160.004
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