pc87591l-n05 National Semiconductor Corporation, pc87591l-n05 Datasheet - Page 44

• Manufacturer Part Number: pc87591l-n05
• Description: Lpc Mobile Embedded Controller
• Manufacturer: National Semiconductor Corporation

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2.0 Signal/Pin Description and Configuration
2.2.8
2.2.9
EXWINT20
EXWINT21
EXWINT22
EXWINT23
EXWINT24
EXWINT40
EXWINT45
EXWINT46
PFAIL
SWIN
AGND
AV
GND
V
V
V
V
BAT
CORF
DD
CC
Signal
CC
Signal
Interrupt and Wake-Up Inputs (ICU and MIWU)
Power and Ground
96
95
17, 35, 46, 122,
137, 159, 167
161
21
16
34, 45, 123,
136, 157, 166
26
29
172
176
30
44
24
25
165
2
Pin(s)
LQFP
Pin(s)
LQFP
K3
K4
B4
A2
L3
P1
H2
J4
D5
B2
Ball(s)
FBGA
L12
M13
F2, L2, P2, A8,
B5, B13, D13
D6
G2
G4
A13, C4, D7,
E14, M3, R1
Ball(s)
FBGA
I/O
I
I
I
Buffer
Type
IN
IN
IN
I/O
I/O
TS
CS
CS
I
I
I
I
I
I
Buffer
IN
Power
Type
PWR
PWR
PWR
PWR
GND
GND
Well
V
V
V
ULR
CC
CC
CC
44
External Wake-up/Interrupt Inputs. Fed into the Multi-
Input Wake-up Unit (MIWU) for wake-up or interrupt. Can be
used as external source for wake-up or interrupt. For details
on interrupt and wake-up event assignment, see Table 16
on page 103.
Power Fail. Non-maskable external interrupt source. This
assigned interrupt is non-maskable only after being enabled
by software after reset.
Power Switch Input. Indicates a user request to turn the
power on or off. This signal is connected to the Multi-Input
Wake-up Unit (MIWU) for wake-up of the core domain and
interrupt generation to the core for handling. For details on
interrupt and wake-up event assignment, see Table 16 on
page 103.
Power
Well
(Continued)
Analog Ground. Used as ground for the Analog-to-
Digital Converter (ADC) and the Digital-to-Analog
Converter (DAC).
Analog 3.3V Power supply. Used as power supply
for the Analog-to-Digital Converter (ADC) and the
Digital-to-Analog Converter (DAC).
Ground. Serves for both on-chip logic, output
drivers and back-up battery circuit. See
Section 3.1.3 on page 59 for details on connections
with AGND.
Battery Power Supply. Provides battery backup to
the Mobile System Wake-Up Control registers, to
the RTC and to the 32 KHz crystal oscillator when
V
logic through a series resistor for UL protection.
On-Chip Power Converter Filter. On-chip power
converter output. Powers the internal logic of all the
device modules. An external 1 F ceramic filter
capacitor must be connected between this pin and
GND.
Digital 3.3V Power Supply. Serves as power
supply for the LPC interface and some of the host-
controlled functions.
Standby Digital 3.3V Power Supply. Serves as
power supply for the LPC interface and some of the
host-controlled functions.
CC
is lost. The pin is connected to the internal
Description
Description
Revision 1.2