pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 63

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

Revision 1.07
3.0 Power, Reset and Clocks
The following table summarizes the power states described in relation with the PC87591x power planes.
Figure 10 shows the power state transitions.
3.1.3
The PC87591x requires a power supply voltage of 3.3V 10% for all the digital supplies (V
supply requires a voltage of 3.3V 10% or 3.3V
accuracy of measuring input voltage values close to the full-scale (see Section 7.4.1 on page 378).
V
V
CC
DD
On and
On
Power Connection and Layout Guidelines
Power Applied
1. Operation is not guaranteed.
V
V
CC
DD
V
DD
On and
Off
Off
Host Domain
Power State
Battery Fail
Power Fail
Power On
Power Off
Illegal
Host
Host
Table 11. PC87591x Power States and Related Power Planes
Host Power Off
Host Power On
Active and Idle
1
V
and V
V
BAT
DD
V
VDD Off
On
On (V
CC
CC
Figure 10. Power State Transitions
(Continued)
Off
On and
PP
V
V
BAT
DD
On)
Host Domain
5%. A 3.3V
On
Off and V
Battery Fail
(V
Power Fail
+
+
DD
x
x
x
-
-
-
)
63
CC
V
and V
BAT
5% analog supply is recommended since it improves the
Off (V
Hardware
Event
V
Suspend
On (V
CC
CC
(V
PP
Off
+
+
+
+
CC
-
-
-
-
On
PP
Off)
)
On)
Analog
Software
Controlled
(AV
Idle
Core Domain
+
+
+
+
Active
-
-
-
-
CC
)
CC
Battery
Backed
V
(V
CC
and V
+
+
+
+
Hardware
Event
x
x
x
PP
-
On
)
DD
Power Applied
(V
). The analog power
CC
with WAIT
V
Active
Software
Controlled
BAT
+
x
x
x
x
x
x
On)
-
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