I_18010_069b.eps
110608
Yes
MIPS reads the wake up reason
from standby µP.
Semi-Standby
Initialize tuner , Master IF and channel
decoder
Initialize source selection
Initialize AutoTV by triggering CHS AutoTV Init inter face
.
3-th try?
Blink Code as
error code
SP
EJTAG probe
connected ?
No
Yes
Bootscript ready
in 1250 ms?
Yes
No
Enable Alive check mechanism
Wait until AVC starts to
communicate
SW initialization
succeeded
within 20s?
No
Switch Standby
I/O line high.
Release AVC system reset
Feed warm boot script
Cold boot?
Yes
No
RPC start (comm. protocol)
Set I²C slave address
of Standby µP to (60h)
Yes
Disable all supply related protections and
switch off the +2V5, +3V3 DC/DC converter.
switch off the remaining DC/DC
converters
Wait 5ms
Switch AVC PNX8541
in reset (active low )
Wait 10ms
Switch the NVM reset
line HIGH.
Do not enter Semi--Standby state in case of an LPL
scanning backlight LCD set before 4s preheating timer has
elapsed .
Flash to RAM image
transfer succeeded
within 30s?
No
Yes
Code = 53
Code = 5
An EJTAG probe (e.g. WindPower ICE probe) can
be connected for Linux Kernel debugging purposes.
(pulling pin of the probe interface to
ground by inserting EJTAG probe)
Release AVC system reset
Feed cold boot script
Release AVC system r eset
Feed initializing boot script
disable alive mechanism
Downloaded
successfully ?
Download firmware into the channel
decoder
Third try?
No
No
Yes
Log channel decoder error
Yes
Channel decoder
TDA 10048?
Yes
No
No
- Channeldecoder type TDA10048
can be reloaded without reset.
Initialize audio
Start 4 seconds preheating timer in case of
an LPL scanning backlight LCD set.
Wait until Cpipe delivers a stable output
clock
Important remark :
Input vertical frequency
changes (48/50/60Hz)
detected during startup
sequence should not be
taken into account . The
end situation should
always be safeguarded .
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