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
RESET
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
$80
SIGNALLING
CONTROL
SUBAUDIO
TX
ENABLE
TONE
DECODER
ENABLE
FAST
DETECT
ENABLE
0
0
FAST CTCSS
MODE
DETECT/
PREDICTIVE
SELCALL
TX
ENABLE
0
DCS
RX
ENABLE
TONE DECODER BANDWIDTH
$82
SIGNALLING
SET-UP
MSB
BIT 3
BIT 2
BIT 1
LSB
BIT 0
TONE
DECODER
MODE
SUBAUDIO
TX MODE
DCS
23/24
DCS BYTE 3
$85
DCS
BYTE 3
OPTIONAL
MSB
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
BYTE 1
BIT 7
BIT 6
BIT 5
BPF
$88
GENERAL
CONTROL
GENERAL
$8B
PURPOSE
TIMER
MSB
BIT 7
BIT 6
GP TIMER
$8E
IRQ
MASK
0
IRQ
MASK
BIT 5
COMP
0 to 1
IRQ MASK
BIT 4
COMP
1 to 0
IRQ MASK
BIT 3
TONE
IRQ
MASK
BIT 2
CTCSS
FAST IRQ
MASK
0
BIT 1
BPF
ENABLE
BPF
UN-MUTE
6dB
PAD
BIT 4
MSB
DAC
BIT 2
DAC
BIT 1
BIT 3
BIT 2
LSB
DAC
BIT 0
GP TIMER
ENABLE
GP TIMER
RE-CYCLE
BIT 1
LSB
BIT 0
GENERAL PURPOSE TIMER
LSB
BIT 0
DCS
IRQ
MASK
$9C
Reserved for later use
©
2009 CML Microsystems Plc
8
D/828/4
CMLMICRO [ CML MICROCIRCUITS ]
