FX828 Datasheet, PDF (8/34 Pages) CML Microcircuits – CTCSS/DCS/SELCALL Processor

CTCSS/DCS/SELCALL Processor
FX828
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
RESET
SUBAUDIO TONE
FAST
$80
SIGNALLING
TX
DECODER DETECT
CONTROL
ENABLE
ENABLE ENABLE
0
N/A
N/A
N/A
N/A
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
$88
GENERAL
BPF
BPF
6dB
DAC
CONTROL
ENABLE UN-MUTE PAD
BIT 2
DAC
BIT 1
LSB
DAC
BIT 0
GP TIMER
ENABLE
GP TIMER
RE-CYCLE
GENERAL
GENERAL PURPOSE TIMER
$8B
PURPOSE
MSB
TIMER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
LSB
BIT 0
GP TIMER COMP
COMP
TONE
CTCSS
DCS
$8E
IRQ
MASK
0
IRQ
0 to 1
1 to 0
IRQ
FAST IRQ
0
MASK IRQ MASK IRQ MASK
MASK
MASK
IRQ
MASK
$9C
Reserved for later use
© 2009 CML Microsystems Plc
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