pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 51

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

Revision 1.07
2.0 Signal/Pin Description and Configuration
2.2.12 Mobile System Wake-Up Control (MSWC)
2.2.13 Timers and PWM
2.2.14 Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
RING
RI1
RI2
UTXD
URXD
USCLK
TA2
TA1
TB2
TB1
PWM7-0
Signal
Signal
Signal
114
113
120
128-Pin
128-Pin
123
22
23
1
127
2
128
33-26
128-Pin
LQFP
LQFP
LQFP
154
153
162
176-Pin
165
26
29
176-Pin
176-Pin
175
171
176
172
43,
40-36,
32-33
LQFP
LQFP
LQFP
I/O
I/O IN
I/O
I/O
I/O
O
O
I
I
I
I
IN
Buffer
Buffer
Buffer
Type
Type
CS/
IN
IN
Type
O
O
IN
T,
IN
2/4
CS
TS
3/6
O
T
O
T
2/4
1/2
Power
Power
Power
Well
Well
V
V
V
V
V
Well
V
V
V
CC
CC
CC
CC
CC
51
CC
CC
CC
USART Transmit Data.
USART Receive Data.
USART Serial Clock. May be used as input or
output when the USART is configured to
operate in its synchronous mode of operation.
Telephone Line Ring. Detection of a pulse
train on this pin is a wake-up event that can
activate the power-up request (PWUREQ). The
pin has a Schmitt Trigger input buffer, powered
by V
Ring Indicator. When low, indicates that a
telephone ring signal has been received by the
modem. Ring signals are monitored during
power-off for wake-up event detection.
Timer Pin A for Timers 2 and 1.
Timer Pin B for Timers 2 and 1.
PWM Output 7-0.
(Continued)
CC
.
Description
Description
Description
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