DPC31的内部ram访问 点击：836 | 回复：2
发表于：2009-11-28 01:04:01
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XCSDATA (chip SELECT external data memory (RAM)) and XCSCODE (chip SELECT external
program memory (ROM)). XCSDATA = low if the access is made to the external data area (starting
with address 2000h). XSCODE = low, if the external code area is accessed (if code RAM is not
used, starting at address 0000h to the end; otherwise, starting at address 1000h). These signals are
always to be connected so that there will not be driver conflicts when connecting an In Circuit
Emulator (ICE).
program memory (ROM)). XCSDATA = low if the access is made to the external data area (starting
with address 2000h). XSCODE = low, if the external code area is accessed (if code RAM is not
used, starting at address 0000h to the end; otherwise, starting at address 1000h). These signals are
always to be connected so that there will not be driver conflicts when connecting an In Circuit
Emulator (ICE).
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