參數(shù)資料
型號: LR4500
廠商: LSI Corporation
英文描述: Superscalar Microprocessor(超標(biāo)量微處理器)
中文描述: 超標(biāo)量微處理器(超標(biāo)量微處理器)
文件頁數(shù): 133/172頁
文件大?。?/td> 1142K
代理商: LR4500
9-1
Chapter 9
ICEport
This chapter describes the CW4011 ICEport building block and is divided
into the following sections:
Section 9.1, “Overview” page 9-1
Section 9.2, “ICEport Features” page 9-2
Section 9.3, “ICEport Functional Blocks” page 9-3
Section 9.4, “ICEport Signals” page 9-5
Section 9.5, “ICEport Registers” page 9-9
Section 9.6, “ICEport Operations” page 9-14
Section 9.7, “ICEport Pin Buffers and Drivers” page 9-22
9.1 Overview
The ICEport is a full-duplex serial UART (universal asynchronous receive
and transmit) port available from LSI Logic. It is an integral part of the
LR4500 Microprocessor reference device. You can use the ICEport to
download core application software and as a CW4011 debugging tool.
The ICEport works with the ICEcontroller at baud rates typically up to
1 Mbaud/s
1
, providing 800 Kbits of data per second.
Figure 9.1
shows a block diagram of a CW4011 system with the ICEport
installed. In the LR4500 configuration, the ICEport is integrated with the
SCLC and SDRAMC modules on the SCbus.
1. Actual baud rate depends on software, ROM access times, and the CPU clock.
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