Philips EJ3.0UPA Service Manual page 19

From part A
action holder: MIPS
action holder: St-by
autonomous action
No
No
No
To part C To part C
Service Modes, Error Codes, and Fault Finding
Start polling the detect-1V2 every 40ms
received within
Enable the supply for
+2.5V and +3.3V (ENABLE-3V3)
Start polling the detect-3V3 every 40ms
received within
Activate supply detection algorithms for
+1V2 and +3V3
SUPPLY-FAULT I/O line
Enable the supply fault detection
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)
No
Release viper reset Release viper reset
Feed warm boot script(2) Feed cold boot script(1)
Release PNX2015 reset 100ms after
Viper reset is released
Bootscript ready
Set I²C slave address
of Standby µP to (64h)
RPC start (comm. protocol)
Figure 5-7 "OFF" to "Semi Stand-by" flowchart (part 2)
From part A
detect-1V2
No
250ms?
Yes
No separate enable and
detect is present for the +2V5
supply in the Baby Jaguar.
detect-3V3
No
250 ms?
Yes
No
is High?
Yes
interrupt
EJTAG probe
connected ?
No
Cold boot?
Yes
Feed initializing boot script (3)
disable alive mechanism
Release PNX2015 reset 100ms
after Viper reset is released
in 1250 ms?
Yes
To part C
EJ3.0U PA
From part A
activate +8V6 supply
+8V6 error
SP
+1.2V error
SP
+3.3V error
SP
Supply fault error
SP
Yes
Release viper reset
G_15960_118b.eps
030806
To part C
5. EN 19
From part A
detection algorithm
return