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ARM7TDMI-S(Rev 4)技术参考手册 - Read

ARM7TDMI-S(Rev 4)技术参考手册 - Read

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广州周立功单片机发展有限公司 Tel (020)38730976 38730916 Fax 38730925 http //www.zlgmcu.com<br />

CLK<br />

CLKEN<br />

nIRQ<br />

nFIQ<br />

nRESET<br />

CFGBIGEND<br />

DMORE<br />

LOCK<br />

DBGINSTRVALID<br />

DBGRQ<br />

DBGBREAK<br />

DBGACK<br />

DBGnEXEC<br />

DBGEXT[1]<br />

DBGEXT[0]<br />

DBGEN<br />

DBGRNG[1]<br />

DBGRNG[0]<br />

DBGCOMMRX<br />

DBGCOMMTX<br />

1.4 <strong>ARM7TDMI</strong>-S 指令集汇总<br />

指令集汇总<br />

指令集汇总<br />

该节提供了 ARM 和 Thumb 指令集的汇总<br />

ARM 指令汇总<br />

Thumb 指令汇总<br />

指令集详见 ARM 体系结构参考手册<br />

1.5 <strong>Rev</strong> 3a 和 <strong>Rev</strong> 4 之间的差异<br />

之间的差异<br />

之间的差异<br />

<strong>ARM7TDMI</strong>-S(<strong>Rev</strong> 4)的变更见下面的章节<br />

增加的 EmbeddedICE-RT 逻辑<br />

改进的调试通信通道(DCC)带宽<br />

通过 JTAG 对 DCC 进行访问<br />

TAP 控制器 ID 寄存器<br />

更加有效的多路传输<br />

<strong>ARM7TDMI</strong>-S<br />

- 6 -<br />

DBGTCKEN<br />

DBGTMS<br />

DBGTDI<br />

DBGnTRST<br />

DBGTDO<br />

DBGnTDOEN<br />

ADDR[31:0]<br />

WDATA[31:0]<br />

RDATA[31:0]<br />

ABORT<br />

WRITE<br />

SIZE[1:0]<br />

PROT[1:0]<br />

TRANS[1:0]<br />

CPnTRANS<br />

CPnOPC<br />

CPnMREQ<br />

CPSEQ<br />

CPTBIT<br />

CPnI<br />

CPA<br />

CPB<br />

图 1-4 <strong>ARM7TDMI</strong>-S 功能框图<br />

EmbededICE-RT

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