900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




National Semiconductor Electronic Components Datasheet

PC87591L Datasheet

LPC Mobile Embedded Controllers

No Preview Available !

PRELIMINARY
March 2004
Revision 1.07
PC87591E, PC87591S and PC87591L
LPC Mobile Embedded Controllers
General Description
The National Semiconductor PC87591E, PC87591S and
PC87591L are highly integrated, embedded controllers with
an embedded-RISC core and integrated advanced func-
tions. These devices are targeted for a wide range of porta-
ble applications that use the Low Pin Count (LPC) interface.
The PC87591S is targeted for security applications and in-
cludes supporting hardware such as the Hardware Random
Number Generator. The PC8591L replaces the on-chip
flash with 4K of boot ROM for value solutions using shared
BIOS architecture. “PC87591x” refers to all the devices.
The PC87591x incorporates National’s CompactRISC
CR16B core (a high-performance 16-bit RISC processor),
on-chip flash (ROM for the PC87591L) and RAM memories,
system support functions and a Bus Interface Unit (BIU) that
directly interfaces with optional external memory (such as
flash) and I/O devices.
System support functions include: WATCHDOG and other
timers, interrupt control, general-purpose I/O (GPIO) with
internal keyboard matrix scanning, PS/2® Interface,
ACCESS.bus® interface, high accuracy analog-to-digital
(ADC) and digital-to-analog converters (DAC) for battery
charging, system control, system health monitoring and an-
alog controls.
The PC87591x interfaces with the host via an LPC interface
that provides the host with access to the Keyboard and em-
bedded controller interface channels, integrated functions,
Real-Time Clock (RTC), BIOS firmware and security func-
tions.
Like members of National’s SuperI/O family, the PC87591x
is PC01 and ACPI compliant.
Outstanding Features
Host interface, based on Intel’s LPC Interface Specifi-
cation Revision 1.0, September 29th, 1997
PC01 Rev 1.0, and ACPI 2.0 compliant
16-bit RISC core, with 2 Mbyte address space, and
running at up to 20 MHz
Software and Hardware controlled clock throttling
Shared BIOS flash memory (internal and/or external)
Y2K-compliant RTC
84/117 GPIO ports (for 128-pin/176-pin packages)
with a variety of wake-up events
Extremely low current consumption in Idle mode
JTAG-based debugger interface
128-pin and 176-pin options, in LQFP package
(PC87591L is 176-pin only)
Block Diagram
LPC Serial
I/F IRQ SMI
Reset &
Config
CR16B Core
Processing
Unit
DMA
Host
Controlled
Functions
LPC Bus I/F
Internal Bus
Core Bus
I/F Functions
CR Access Shared mem. Bus
Bridge
+ Security Adapter
Memory
RAM FLASH or ROM
BIU
Peripheral Bus
Peripherals
KBC + PM
Host I/F
MSWC
HFCG
ICU
KBSCAN +
ACM
GPIO
ACB
(X2)
Timer +
WDG
ADC USART
RTC
32.768 KHz
PMC MIWU
CLK
Debugger PS/2
I/F I/F
MFT16
(X2)
PWM
DAC
JTAG
External
Memory + I/O
National Semiconductor is a registered trademark of National Semiconductor Corporation. All other brand or product names are trademarks or registered trademarks of their respective holders.
© 2004 National Semiconductor Corporation
www.national.com


National Semiconductor Electronic Components Datasheet

PC87591L Datasheet

LPC Mobile Embedded Controllers

No Preview Available !

Features (Continued)
Device-Specific Information
The following table compares features for the devices in the PC87591x family. The features listed below are a superset of
the PC87591x family.
Function
Flash Size
ROM Size
RAM Size
General-Purpose Input/Output Ports (GPIO)
Shared BIOS
RNG
Memory Protection
PC87591E PC87591E PC87591S PC87591S PC87591L
128-Pin 176-Pin 128-Pin 176-Pin 176-Pin
64K
64K
128K
128K
– – – – 4K
2K 2K 4K 4K 2K
62 93 62 93 93
NO
YES
NO
YES
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
YES
Features
Processing Unit
CompactRISC CR16B 16-bit embedded RISC pro-
cessor core (the “core”)
2 Mbyte address space
Internal Memory
Up to 128 Kbytes of on-chip flash memory (4 Kbytes
of ROM in the PC87591L)
Supports BIOS (flash) memory sharing with PC host
On-chip flash is field upgradable by host, CR16B,
parallel interface or JTAG
Boot blocks for both CR16B and Host Code
Memory contents protection and security
Hardware-protected boot zone with block protection
circuit
2K (PC87591E/L) or 4K of on-chip RAM (PC87591S)
All memory types can hold both code and data
Expansion Memory (Optional in 176-pin package)
Up to 1 Mbyte of additional code and data
Supports BIOS (flash) memory sharing with PC host
Supports external memory power-down mode
Field upgradable with flash or SRAM devices
Supports host-controlled code download and up-
date
Bus Interface Unit (BIU)
Three address zones for static devices (SRAM,
ROM, flash, I/O)
Configurable wait states and fast-read, single-
cycle bus cycles
8- or 16-bit wide bus
LPC System Interface
Synchronous cycles, up to 33 MHz bus clock
Serial IRQ
I/O and Memory read and write cycles
Bootable memory support
Bus Master read and write cycles
Reset input
Base Address (BADDR) strap to determine the base
address of the Index-Data register pair
LPCPD and CLKRUN support
FWH Transaction support
Security Function Support
Random Number Generator (RNG)
Full Random using temperature, voltage and system
noise.
Memory access protection
Embedded Controller System Features
Host Bus Interface (HBI)
Three host interface channels, typically used for the
KBC, ACPI Private or Shared EC channels
8042 KBC standard Interface (legacy 6016, 6416)
Intel 80C51SL compatible
IRQ1 and IRQ12 support
Fast Gate A20 and Fast Host Reset via firmware
PM interface port (legacy 6216, 6616)
ACPI Embedded Controller with either Shared or
Private interface
IRQ, SMI or SCI generation
www.national.com
2
Revision 1.07


Part Number PC87591L
Description LPC Mobile Embedded Controllers
Maker National Semiconductor
PDF Download

PC87591L Datasheet PDF






Similar Datasheet

1 PC87591E LPC Mobile Embedded Controllers
National Semiconductor
2 PC87591L LPC Mobile Embedded Controllers
National Semiconductor
3 PC87591S LPC Mobile Embedded Controllers
National Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy