MX828DS Ver la hoja de datos (PDF) - MX-COM Inc
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MX828DS Datasheet PDF : 34 Pages
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CTCSS/DCS/SelCall Processor
8
MX828 PRELIMINARY INFORMATION
4.1.2 Address/Commands
Instructions and data are transferred, via “C-BUS”, in accordance with the timing information given in Figure 4.
Instruction and data transactions to and from the MX828 consist of an Address/Command (A/C) byte followed by either:
(i) a further instruction or data (1 or 2 bytes) or
(ii) a status or Rx data reply (1 byte)
4.2 8-bit Write Only Registers
HEX
ADDRESS/
COMMAND
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)
$01
GENERAL
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
RESET
SUBAUDIO
TONE
FAST
$80
SIGNALLING
TX
DECODER DETECT
CONTROL
ENABLE
ENABLE ENABLE
0
SELCALL
DCS
TX
RX
0
ENABLE
0
ENABLE
TONE DECODER BANDWIDTH
FAST CTCSS
$82
SIGNALLING
MSB
LSB
MODE
TONE
SUBAUDIO
DCS
SET-UP
BIT 3
BIT 2
BIT 1
BIT 0
DETECT/ DECODER
PREDICTIVE
MODE
TX MODE
23/24
$85
DCS
OPTIONAL
MSB
DCS BYTE 3
BYTE 3
BIT 23
BIT 22
BIT 21
BIT 20
BIT 19
BIT 18
BIT 17
BIT 16
DCS BYTE 2
$86
DCS
BYTE 2
BIT 15
BIT 14
BIT 13
BIT 12
BIT 11
BIT 10
BIT 9
BIT 8
DCS BYTE 1
$87
DCS
LSB
BYTE 1
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
BPF
MSB
LSB
$88
GENERAL
BPF
BPF
6dB
DAC
DAC
DAC
GP TIMER GP TIMER
CONTROL
ENABLE UN-MUTE PAD
BIT 2
BIT 1
BIT 0
ENABLE RE-CYCLE
GENERAL
GENERAL PURPOSE TIMER
$8B
PURPOSE
MSB
LSB
TIMER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
GP TIMER COMP
COMP
TONE
CTCSS
DCS
$8E
IRQ
0
IRQ
0 to 1
1 to 0
IRQ
FAST IRQ
0
IRQ
MASK
MASK IRQ MASK IRQ MASK
MASK
MASK
MASK
$9C
Reserved for later use
Table 4: 8-bit Write Only Registers
© 1997 MX•COM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054
Doc. # 20480161.002
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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