PDF PC87591E Data sheet ( Hoja de datos )

Número de pieza	PC87591E
Descripción	LPC Mobile Embedded Controllers
Fabricantes	National Semiconductor
Logotipo
Hay una vista previa y un enlace de descarga de PC87591E (archivo pdf) en la parte inferior de esta página. Total 70 Páginas
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 1 page Revision Record Revision Date April 11, 00 December 25, 00 May 1, 01 May 8, 01 July 19, 01 October 28, 01 July 2002 April 2004 Status 0.13 1.0 1.02 1.03 1.04 1.05 1.06 1.07 Comments External version of Architectural Speciﬁcation Preliminary Preliminary Preliminary Preliminary Preliminary Preliminary Preliminary: All references to CSP package are removed in Rev 1.07. Revision 1.07 5 www.national.com 5 Page Table of Contents (Continued) Timer Interrupt Control Register (TnICTL) ......................................................... 145 Timer Interrupt Clear Register (TnICLR) ........................................................... 146 4.8 PULSE WIDTH MODULATOR (PWM) .................................................................................... 147 4.8.1 Features .................................................................................................................... 147 4.8.2 Functional Description ............................................................................................... 147 4.8.3 Cycle Time and Duty Cycle Calculation .................................................................... 148 4.8.4 Power Modes ............................................................................................................. 148 4.8.5 PWM Registers .......................................................................................................... 148 PWM Register Map ............................................................................................ 148 Clock Pre-Scaler Register (PRSC) .................................................................... 148 Cycle Time Register (CTR) ................................................................................ 149 Duty Cycle Registers 0 to 7 (DCRi) ................................................................... 149 PWM Polarity Register (PWMPOL) ................................................................... 150 PWM Control Register (PWMCNT) ................................................................... 150 4.9 UNIVERSAL SYNCHRONOUS/ASYNCHRONOUS RECEIVER-TRANSMITTER (USART) .. 151 4.9.1 Features .................................................................................................................... 151 4.9.2 Functional Overview .................................................................................................. 151 4.9.3 Operation ................................................................................................................... 153 4.9.4 USART Registers ...................................................................................................... 158 USART Register Map ........................................................................................ 158 Receive Data Buffer Register (URBUF) ............................................................ 158 Transmit Data Buffer Register (UTBUF) ............................................................ 158 Baud Rate Pre-Scaler Register (UPSR) ............................................................ 158 Baud Rate Divisor Register (UBAUD) ............................................................... 158 Frame Select Register (UFRS) .......................................................................... 159 Mode Select Register (UMDSL) ........................................................................ 160 Status Register (USTAT) ................................................................................... 161 Interrupt Control Register (UICTRL) .................................................................. 162 4.9.5 Usage Hints ............................................................................................................... 162 4.10 TIMER AND WATCHDOG (TWD) ........................................................................................... 164 4.10.1 Features .................................................................................................................... 164 4.10.2 Functional Description ............................................................................................... 164 4.10.3 TWD Registers .......................................................................................................... 166 TWD Register Map ............................................................................................ 166 Timer and WATCHDOG Configuration Register (TWCFG) ............................... 166 Timer and WATCHDOG Clock Pre-Scaler Register (TWCP) ............................ 167 TWD Timer 0 Register (TWDT0) ....................................................................... 167 TWDT0 Control and Status Register (T0CSR) .................................................. 168 WATCHDOG Count Register (WDCNT) ............................................................ 168 WATCHDOG Service Data Match Register (WDSDM) ..................................... 168 4.10.4 Usage Hints ............................................................................................................... 169 4.11 ANALOG TO DIGITAL CONVERTER (ADC) .......................................................................... 170 4.11.1 Features .................................................................................................................... 170 4.11.2 Functional Description ............................................................................................... 170 4.11.3 Voltage Measurement ............................................................................................... 173 4.11.4 Temperature Measurement ....................................................................................... 173 4.11.5 ADC Operation .......................................................................................................... 174 Reset ................................................................................................................. 174 ADC Clock ......................................................................................................... 174 Revision 1.07 11 www.national.com 11 Page

Páginas	Total 70 Páginas
PDF Descargar	[ Datasheet PC87591E.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
PC87591E	LPC Mobile Embedded Controllers	National Semiconductor
PC87591L	LPC Mobile Embedded Controllers	National Semiconductor
PC87591S	LPC Mobile Embedded Controllers	National Semiconductor

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar