參數(shù)資料
型號(hào)： L9A0212
廠商： LSI CORP
元件分類： 微控制器/微處理器
英文描述： Microprocessor
中文描述： 32-BIT, 85 MHz, RISC PROCESSOR, PBGA256
封裝： PLASTIC, MO-151, BGA-256
文件頁(yè)數(shù)： 1/32頁(yè)
文件大小： 128K
代理商： L9A0212
March 2000
Copyright 1998–2000 by LSI Logic Corporation. All rights reserved.
1
TinyRISC
LR4102
Microprocessor
Datasheet
The TinyRISC LR4102 Microprocessor is a compact, high performance
32-bit microprocessor implemented in the LSI Logic G11 technology.
The LR4102 is a complete microprocessor solution with caches, an
external bus interface with built-in memory controllers, and on-chip
debug. The LR4102 is built using the EZ4102 EasyMACRO subsystem,
available to customers through the LSI Logic CoreWare
program.
The LR4102 provides a 32-bit FBusMACRO to control all off-chip data
transactions (including DRAM or SDRAM) and an EJTAG interface for
on-chip debug with PC trace output.
Figure 1
illustrates the LR4102 chip.
Figure 1
LR4102 Block Diagram
The LR4102 microprocessor is powered by either 2.5 V (for 85 MHz
operation) or 1.8 V (for 50 MHz operation). The chip I/O ring requires
3.3 V. With a system clock of 85 MHz, peak performance is 85 MIPS and
sustained performance is estimated at 68 MIPS. With a 50 MHz clock,
performance is 50 MIPS peak and 40 MIPS sustained.
LR4102
Two 32-bit Timers
SerialICE-1 Port
EJTAG
OCM
EJTAG
Interface
SerialICE-1
Interface
MMU
BIU and Cache
Controller (BBCC)
32-bit TinyRISC
4102 CPU
and FastMDU
FBus-
MACRO
TLB RAM
PC Trace
Output
FBus
Clock
Controller
EJTAG
Caches
Extended Debug MACRO
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