pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 3
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pc87591l
Manufacturer Part Number
pc87591l
Description
Lpc Mobile Embedded Controllers
Manufacturer
National Semiconductor Corporation
Datasheet
1.PC87591L.pdf
(437 pages)
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Revision 1.07
Features
Interrupt Control Unit (ICU)
— 31 maskable vectored interrupts (of which 26 are ex-
— General-purpose external interrupt inputs through
— Enable and pending indication for each interrupt
— Non-maskable interrupt input
Multi-Input Wake-Up (MIWU)
— Supports up to 32 wake-up or interrupt inputs
— Generates wake-up event to PMC (Power Manage-
— Generates interrupts to ICU
— Provides user-selectable trigger conditions
General-Purpose I/O (GPIO)
— 84/117 port pins in 128-pin/176-pin package, re-
— I/O pins individually configured as input or output
— Configurable internal pull-up resistors
— Special ports for internal keyboard matrix scanning
— Input for system On/Off switch
— 27 external wake-up events
— Low-cost external GPIO expansion through the
PS/2 Interface
— Supports four external ports: Keyboard, mouse and
— Supports byte-level handling via hardware accelera-
Two ACCESS.bus (ACB) Interface modules. Each is:
— Intel SMBus
— ACCESS.bus master and slave
— Up to three simultaneous slave addresses detected
— Supports polling and interrupt controlled operation
— Generates a wake-up signal on detection of a Start
— Optional internal pull-up on SDA and SCL pins
Two 16-bit Multi Function Timer (MFT16) modules.
Each module:
— Contains two 16-bit timers
— Supports Pulse Width Modulation (PWM), Capture
Universal Synchronous/ Asynchronous Receiver-trans-
mitter (USART)
— A full-duplex USART channel
— Programmable baud rate
— Data transfer via interrupt or polling
— Synchronous mode with either internal or external
— 7-, 8- or 9-bit protocols.
ternal)
MIWU
ment Controller)
spectively.
BIU I/O Expansion protocol
two additional pointing devices
tor
Condition while in Idle mode
and Counter
clock
16 open-collector outputs
Eight Schmitt inputs with internal pull-ups
(Continued)
®
and Philips I
2
C
®
compatible
3
Host Controlled Functions Features
Pulse Width Modulation (PWM) Module
— Eight outputs
— 8-bit duty cycle resolution
— Common input clock prescaler
Timer and WATCHDOG (TWM)
— 16-bit periodic interrupt timer with 30 s resolution
— 8-bit WATCHDOG timer
Analog to Digital Converter (ADC)
— Fourteen channels, with 10-bit resolution
— Sigma-delta technology for high noise rejection
— Three voltage measurements and one temperature
— Internal voltage reference
Hardware Monitoring
— Controlled by embedded controller
— System Voltage Measurement
— Diode-Based Temperature Measurement
— Production time calibration using flash parameters
Digital to Analog Converter (DAC)
— Four channels, 8-bit resolution
— 1 s conversion time for 50 pF load
— Full output range from AGND to AVCC
Analog Comparators Monitor (ACM)
— Eight comparator inputs on KBD scan inputs
— 6-bit input measurement resolution
— Scan and Threshold modes
— Supports low-current system wake-up
Development Support Features
— Interface to debugger via JTAG pins
— Flash programing via JTAG
CR16B Access to Host Controlled Functions
— Enabled when host inactive
Supports Microsoft
(APM) Specifications Revision 1.2, February 1996
— Generates the System Management Interrupt (SMI)
PC1 and ACPI Compliant
— PnP Configuration Register structure
— Flexible resource allocation for all logical devices
and 5-bit prescaler for system tick and periodic
wake-up tasks
measurement every 100 ms
Up to eight external measurement points
Four internal measurement points
Smart power failure detection
Software-controlled fault detection
Hardware-monitored over-temperature detection
ISE/ADB mode
On-board Debug mode
Relocatable base address
®
Advanced Power Management
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