BDP-95FD
26
1
2
4
1
2
3
4
C
D
F
A
B
E
1.Reset specification
[On start-up]
1
Recei
v
ing Power O
N
key, su
b
-microcomputer turns Power_O
N
signal to ”H”.
2
Recei
v
ing Power O
N
signal, power turns each SW power to ”O
N
”.
3
V
+3D turns O
N
, then ResetG# to ”L”
b
y ResetIC.
4
Su
b
-microcomputer turns H,I,J,K to ”L”
b
y ResetG#”L”and Reset#,2#,3#,4#,5# to ”L”.
5
ResetG# is ”L”
⇒
(after 200ms) to ”H” *IC3901 BD452
8
2 operation.
6
Su
b
-microcomputer recei
v
es ResetG#”H”, then turns H,I,J,K to ”H”.
7
H,I,J,K transit to ”H”, then Reset#,2#,3#,4#,5#”L” turn to ”H”.
Power_O
N
V
+3D
ResetG#
Reset#,2#,3#,4#,5#
[At normal end]
1
Su
b
-microcomputer detects the pushing of Power key, then notifies PowerOFF to SMP
8
634
b
y I2C.
2
Recei
v
ing PowerOFF notification, SMP
8
634 conducts end processing.
3
SMP
8
634 instructs PowerOFF to su
b
-microcomputer
b
y I2C.
4
Su
b
-microcomputer turns H,I,J,K to ”L”, and after 50msec, PowerO
N
signal to ”L”.
5
By turning H,I,J,K to ”L”, Reset#,2#,3#,4#,5# ”H” turn to ”L”.
6
After 50msec, power turns each SW power to OFF.
H,I,J,K
Reset#,2#,3#,4#,5#
Power_O
N
[Power abnormality]
*Reset operation in the case of 1.2
V
or 3.3
V
drop.
Determine if ResetG
b
ecomes ”L”, then turn Reset# - Reset5# to L, and after 200ms to ”H”.
V
+3D,
V
+1R2D
ResetG#
Reset#,2#,3#,4#,5#
+5E to OFF, RES# turns to ”L”. Su
b
-microcomputer stops.
+3D to OFF, ResetG# turns to ”L”
b
y ResetIC.
-microcomputer stops and Reset output is in the ”PullDown”, turns immediately to ”L” .
V
+1R2D
ResetG#
Reset#,2#,3#,4#,5#
PO
N
key
200ms
SMP
8
634 is recommended to unlock RST after 200ms from
V
+3D startup.
completion notice of I2C
SMP
8
634 end processing
50ms
200ms
in case of
V
+1R2D : 0.75ms
in case of
V
+3D : 200ms
in each case, if FallEdge is detected, turn to
200ms ”L”hold. (required reset time for SMP
8
634)
discharge
b
y capacity
By RES# su
b
-microcomputer stops and Reset
output is in the ”ZPullDown”, turns immediately to ”L”.
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
