RALCWI Vocoder
CMX608/CMX618/CMX638
CMX608/
CMX618/
CMX638
L4/Q3
Signal
Description
Pin No.
Name
Type
Digital
Output
19
EEC
Enable external CODEC, controlled by the C-BUS
Reset external CODEC, controlled by the C-BUS
Digital
Output
20
REC
NC
VSS
NC
21
22
Reserved for future use. Do not connect to this pin.
Negative Power Supply 0V
Power
CMX608: Reserved for future use. Do not connect to this pin.
23
CMX618/CMX638: CODEC Select (Internal if '1', External if '0')
This pin must be connected to either IOVDD or VSS.
CSEL
IOVDD
SYNC
Digital Input
24
25
Power
Digital
Digital I/O Positive Power Supply 3.3V
Synchronisation Input/Output. By default, this pin is an input
Input/Output and must be connected by the user to either IOVDD or VSS.
26
27
28
29
30
VSS
Power
Input
Negative Power Supply 0V
Crystal Input
XTALin
XTALout
IOVDD
Output
Power
Crystal Output
Digital I/O Positive Power Supply 3.3V
RESETN
Digital Input General Reset (active low)
31
32
33
34
35
36
37
38
39
40
41
42
43
XTALSEL1 Digital Input
XTALSEL2 Digital Input
XTALSEL3 Digital Input
These bits select the crystal/clock frequency,
according to Table 1.
ENABXTAL Digital Input Enable Crystal Oscillator/External Clock Input
IOVDD
NC
Power
Digital I/O Positive Power Supply 3.3V
Reserved for future use. Do not connect to this pin.
Reserved for future use. Do not connect to this pin.
Reserved for future use. Do not connect to this pin.
Reserved for future use. Do not connect to this pin.
Reserved for future use. Do not connect to this pin.
Negative Power Supply 0V
NC
NC
NC
NC
VSS
Power
CLK
CDATA
Digital Input C-BUS Serial Clock
Digital Input C-BUS Command Data
Tri-state
44
45
RDATA
CSN
C-BUS Reply Data
Output
C-BUS
Digital Input C-BUS Chip Select (bar)
Open Drain
46
IRQN
Digital
Output
C-BUS Interrupt Request (bar)
2014 CML Microsystems Plc
7
D/608_18_38/11
CMLMICRO [ CML MICROCIRCUITS ]
