pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 47

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

Revision 1.07
2.0 Signal/Pin Description and Configuration
IOPE7-0
Signal
21-20,
34,
4,
68-65
128-Pin
LQFP
25-24,
44,
2,
90-87
176-Pin
LQFP
I/O
I
Buffer
Type
IN
TS
Power
Well
V
47
CC
General-Purpose Input Port. These pins serve
as input-only pins. The GPIO registers are
accessible by the core for read and
configuration. The pins may be used as GPIO
or assigned to their respective alternate
functions. IOPE0-3 and IOPE5 do not have an
internal pull-up resistor option. Note that
IOPE0-3 and IOPE6-7 are not 5V tolerant. See
Section 2.4 on page 54 for GPIO pin
assignment to alternate functions. See
Section 4.5 on page 113 for further details on
the GPIO pins and their functionality.
(Continued)
Description
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