MX802 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'MX802' PDF : 24 Pages View PDF
DVSR CODEC
22
MX802
Notes:
1. Minimum Timing Values
a. For all commands except “Read Data” and “Write Data” Commands.
b. For all “Read Data” and Write Data” commands when no “Speech Store” or “Speech Play” commands
are active.
c. For “Read Data” and “Write Data” commands when “Speech Store” or “Speech Play” commands are
active.
2. Depending on the command, 1 or 2 bytes of Command Data are transmitted to the peripheral MSB (bit7)
first and LSB (bit0) last. Reply data is read from the peripheral MSB (bit7) first and LSB (bit0) last.
3. To allow for different microcontroller serial interface formats, C-BUS compatible ICs are able to work with
either polarity Serial Clock pulses.
4. Data is clocked into and out of the peripheral on the rising Serial clock edge.
5. Loaded commands are acted upon at the end each command.
CHIP SELECT
t CSOFF
SERIAL CLOCK
t CSE
t NXT
t NXT
COMMAND DATA
76543210
MSB
LSB
ADDRESS/COMMAND
BYTE
REPLY DATA
Logic level is not important
t CK
76543210
FIRST DATA BYTE
76543210
MSB
LSB
FIRST REPLY DATA BYTE
76 54 32 10
LAST DATA BYTE
765432 1 0
LAST REPLY DATA BYTE
Figure 9: C-BUS Timing Information
t CSH
t HIZ
Figure 10: Codec Direct Access Timing
1998 MX-COM, Inc.
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480033.008
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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