SMSC DS – FDC37N958FR
Rev. 09/01/99
FDC37N958FR
Notebook I/O Controller with Enhanced Keyboard
and System Control
FEATURES
! 5 Volt Operation
! ACPI 1.0 Compliant
! PC 99 Compliant
! Three Power Planes
! <20"A Consumption in Sleep Mode
! Configuration Register Set Compatible with
ISA Plug-and-Play Standard (Version 1.0a)
! Serial IRQ meets IRQ Specification for PCI
Systems
-
Quiet (Active) Mode
-
Continuous (Idle) Mode
!
8051 Controller uses Parallel Port to
Reprogram the Flash ROM
!
IR Interface Fully Compliant to IrDA 1.1
(Fast IR)
-
TEMIC/IBM Module Support
-
HP Module Support
-
Sharp Module Support
! ISA Host Interface
-
16 Bit Address Qualification
-
8 Bit Data bus
-
Zero Wait-State I/O Register Access
-
All Write Only Registers are Shadowed
-
IOCHRDY for ECP and Flash Cycles
-
8 Direct IRQs Including nSMI
-
Four 8 Bit DMA Channels
! System Flash Interface (256Kx8)
-
8051/Host CPU Multiplexed Interface
-
Eight 32K pages - 8051 Keyboard BIOS
-
Four 64K pages - Host System BIOS
! 8051 Keyboard and System Controller
-
Provides System Power Management
-
System Watch Dog Timer (WDT)
-
8042 Style Host Interface
-
Asynchronous Access to Two Data
Registers and One Status Register
-
Supports Interrupt and Polling Access
-
2K Internal ROM, nEA Pin Select
-
32K Bank Switchable External Flash Rom
Interface
-
256 Bytes Data RAM
-
Access to On-Chip Control Registers via
MOVX External Data Access Commands
-
Access to RTC and CMOS Registers
-
Up to 16x8 Keyboard Scan Matrix
-
Two 16 Bit Timer/Counter
-
Integrated TX/RX Serial Interface
-
Six 8051 Interrupt Sources
-
Sixteen 8 Bit, Host/8051 Mailbox
Registers
-
19 Maskable Hardware Wake-Up Events
Supported
-
Fast GATEA20
-
Fast CPU_RESET
-
Multiple Clock Sources and Frequencies
-
IDLE and SLEEP Modes
! Real Time Clock
-
MC146818 and DS1287 Compatible
-
256 Bytes of Battery Backed CMOS in
Two Banks of 128 Bytes
-
128 Bytes of CMOS RAM Lockable in
4x32 Byte Blocks
-
12 and 24 Hour Time Format
-
Binary and BCD Format
-<1"A Standby Current (typ)
!
ACCESS.bus Interface
-
8584 Style Interface
!
PS/2 Ports
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