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EN 20
5.
EL1.1U
From part A
No
To part C
Service Modes, Error Codes, and Fault Finding
No
Release viper reset
Feed warm boot script(2)
No
No
Code = 5
Switch Viper in reset
Code = 53
To part C
Figure 5-4 "Off" to "Semi Stand-by" flowchart (part 2)
From part B
detect-1V2
No
received within
250ms?
Yes
Enable the supply for
+2.5V and +3.3V (ENABLE-3V3)
Start polling the detect-3V3 every 40ms
detect-3V3
received within
No
250 ms?
Yes
Activate supply detection algorithms for
+1V2 and +3V3
SUPPLY-FAULT I/O line
No
is High?
Yes
Enable the supply fault detection
interrupt
Set I²C slave address
of Standby µP to (A0h)
Detect EJTAG debug probe
(pulling pin of the probe interface to
ground by inserting EJTAG probe)
EJTAG probe
connected ?
No
Cold boot?
Yes
Release viper reset
Feed cold boot script(1)
Release PNX2015 reset 100ms after
Viper reset is released
Bootscript ready
in 1250 ms?
Yes
Set I²C slave address
of Standby µP to (64h)
RPC start (comm. protocol)
Flash to RAM image
transfer succeeded
within 30s?
Yes
Viper SW initialization
No
succeeded
within 20s?
To part C
action holder: MIPS
action holder: St-by
autonomous action
+1.2V error
SP
No separate enable and
detect is present for the +2V5
supply in the Baby Jaguar.
+3.3V error
SP
Supply fault error
SP
Yes
Release viper reset
Feed initializing boot script (3)
disable alive mechanism
Release PNX2015 reset 100ms
after Viper reset is released
To part C
F_15400_096b.eps
260505
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