CMX605P3 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX605P3' PDF : 26 Pages View PDF
Digital Line to POTS Interface
Page 14 of 26
CMX605 Preliminary Information
4.10 C-BUS Timings
The relationship between bytes loaded onto the C-BUS and the transmission of FSK bytes shown in Figure 8,
Figure 9, and Figure 10.
There are many ways that the C-BUS can be used to program a device. Three suggestions are shown in
Figure 8, Figure 9, and Figure 10, together with typical timings. Please note that the C-BUS timing is not
shown to the same scale as the FSK output.
Analog
TONEFSK
(Tx DATA)
C-BUS
CS
MARK
BYTE 1
BYTE 2
MARK
106µs typ.
BYTE 3
COMMAND
DATA
C-BUS
IRQ
Tx READY
FLAG
Tx UNDER-
FLOW FLAG
208µs typ.
MODE
register
FSK enable
Bit Period = 833µs typ.
ASYNC mode after GENERAL RESET
Configure SETUP (set B6=1 always)
Configure MODE (set B6=1 to Enable)
Read STATUS
Load Tx DATA with BYTE 1
Load Tx DATA with BYTE 2
Load Tx DATA with BYTE 3
NOTE: C-BUS timing not shown to scale
Figure 8: ASYNC Mode after GENERAL RESET
¤2001 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480195.005
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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