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IT812M, IT8152, IT8152F

Table of contents:
Info of IT812M
Info of IT8152
Info of IT8152F

IT812M, IT8152, IT8152F Selling Leads, Datasheet

MFG:sgs Package Cooled:sgs D/C:dc02

IT812M, IT8152, IT8152F Datasheet download

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Part Number: IT812M

MFG: sgs

Package Cooled: sgs

D/C: dc02

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IT8152F General Description

The IT8152, an advanced RISC-to-PCI companion chip that supports SA1110 32-bit RISC microprocessor interface, is especially designed for the main applications in Datacomm, Telecomm, and Internet Appliances and Networking devices. This companion chip interfaces directly to RISC processors, and provides a bridge to link host bus and PCI bus. It also provides a Shared Memory (SDRAM) Controller, Low Pin Count (LPC) Host Controller, Interrupt Controller, DMA Controller, Timers, USB Host Controller, Digital AC'97 Controller, GPIO Controller and Power Management.

Paired with Intel's SA1110 RISC microprocessor interface, the IT8152 provides a low cost, high performance host to PCI bridge function for any system applications in Datacomm/Telecomm products.

The IT8152 is available in two packages: 208-pin PQFP and 208-pin LBGA.

IT8152F Features

CPU Interface
- Supports INTEL StrongArm Series SA1110 32-bit RISC microprocessor interface
Shared SDRAM Controller
- Supports 16Mb, 64Mb, 128Mb, 256Mb SDRAM
- Supports up to 64MB Memory
- 32-bit data bus interface
- Supports one bank of SDRAM shared with SA1110 microprocessor interface SDRAM controller
- Provides deep levels of PCI to SDRAM buffers for burst transfer
- Up to 96 MHz bus operation
PCI Bus Controller
- 32-bit data bus interface
- Supports PCI rev. 2.1 specification
- Provides CPU to PCI buffers for burst transfer
- PCI bus arbiter built in
- Supports up to 4 individual external bus master devices
- Supports CLKRUN# signal function
- 33 MHz bus operation
Interrupt Controller
- Supports one maskable interrupt to RISC processor
- Interrupt order is controlled by software
- Registers support interrupts masking and unmasking
Chaining DMA Controller
- Four independent software DMA channels
- Supports chaining mode and non-chaining mode
- Supports both PCI memory address and I/O address
- Supports rotating and fixed priority types
- Supports DMA transfers of unaligned address
Timers
- 4-channel 24-bit auto-reloaded timer with pre-scale (1,1/16,1/256) for dividing CPU clock
- Supports the interrupt generation whenever the timer's count reaches 0
Low Pin Count (LPC) Host Controller
- Compliant with Intel LPC Interface Specification Rev. 1.0 (Sept. 29, 1997)
- Supports Serial IRQ Protocol
- Shared with GPIO pins
Digital AC'97 Controller
- Directly interfaced to AC'97 CODEC for controlling voice data to the speaker or from the microphone
USB Host Controller
- Supports two USB ports
- Supports device bandwidth of 12 Mbps or 1.5 Mbps
- Supports power management mode to protect USB Bus power, and overcurrent detector to protect USB bus from abnormal overcurrent load
- Fully compatible with USB specification version 1.1 and register compatible with OHCI specification version 1.0 issued by Microsoft,Compaq and NS
UART
- Supports TXD and RXD signals for serial data transfer, it is 16550 mode compatible
General Purpose I/O (GPIO) Function
- GPIO pins can be programmed as inputs,outputs, or as interrupt inputs
- Interrupt events can be independently programmed to rising edge or falling edge trigger
- Maximum 8 bits for GPIO functions
Clock Generator and PLL
- Provides a PLL from 12 MHz to 96 MHz for SDRAM controller
- Provides a PLL from 12 MHz to 33 MHz for PCI bus controller
- Clock generator and PLL support STANDBY mode
Power Management
- Software controllable power management
- Intelligent Power management to reduce power consumption
- System wake up through interrupt, GPIO pins
Package: 208-pin PQFP
208-pin LBGA

IT8152F Connection Diagram

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