CMX7163 QAM Modem
CMX7163
6
12/4/11
Remove information indicating that a reset with no FI load is possible. See
sections 10.1.1 Reset Operations, 7.3 Function image loading
FIFO level interrupts to the host require re-arming using $50 FIFO control. See
10.1.4 FIFO Control $50
Include description for "I/Q Input dc correction loop gain". See 10.1.10 Signal
control $61
Spectrum figure ACP mislabeled as for 25kHz when it is for 12.5kHz
Include over-air symbol sequence for FI-4 data. See 7.4.15, 10.1.3 and
10.1.26. Specifically this matters for bit wise transfers, indicating which bits are
valid
Default values in 10.1.9 to be changed: $07FF becomes $0400; $0801
becomes $0C00
Addition of "Tx Done flag set on completion of DC Calibration" to 7.4.11,
10.1.18 and 10.1.36. Also indicated that AuxADC paths, etc in 7.4.11 are fixed
permanently, by changing the description "assumed" to "required"
Figure 27 to show "Main PLL out" sourced directly from the Xtal in Idle mode
Update Figure 3
5
21/3/11
Add descriptions for Program Blocks 8 and 9
Clarify text at the end of section 11.2.2
Change b11 to b9 in section 10.1.14
Remove FI Load Activation Block references and describe default states in
section10.1.2
Clarify bit names in section 10.1.20, to avoid duplication
Add missing action #20 in section 10.2.1
Add details of the method of programming the lower part of the Rx I/Q dc offset
($5F,$60)
Simplify the detail of the system clock architecture
Describe RRC =0.2/0.35 option
Added programmable filter option (details on request)
Update I/Q output reconstruction filter Capacitor values to be preferred values
Clarified the structure of words put into the Modem Command FIFO
Revised recommended crystal tolerance
4
6/12/10
Revised C-BUS clock rate
Revised current drawn by AuxDACs
Clarify maximum input signal levels
Improved programming register settings determining baud rate resulting in
improved adjacent channel performance (P1.0-P1.6).
Improved consistency of naming of signals and registers within the document
and when compared to other CML devices. Notably AuxADC/DAC are now
numbered 1-4
Added detail for new FI feature: Tx DC calibration when attached to a CMX998
Added detail for new FI feature: Discard symbol count which allows
modulation to begin earlier than it would otherwise.
Many editorial changes
Added Output dc offset lower part control to registers $5D, $5E
Changed default GPIO and RAMDAC setup to manual
Added Reg Done Select register ($69) and changed to description of PRG flag
to be a type of “Reg Done”
3
27/9/2010
Corrections to Boot description
Corrected several minor typographical and presentational errors.
2014 CML Microsystems Plc
Page 7
D/7163_FI-4.x/12
CMLMICRO [ CML MICROCIRCUITS ]
