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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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CPU整体配置：程序计数器
程序计数器（PC）是管理下一步要执行的指令的存储器地址的寄存器。
每次执行一条指令时，程序计数器指定的地址将＋n（1字指令为＋1，2字指令为＋2）。
但是，在中断指令等情况下，将存储跳转目标地址。
CPU从PC读取下一条要执行的指令所在的地址，并依次执行。
例如，如果PC中存储了0x8020（地址），则意味着CPU正在执行地址为0x8019的指令。
如果从PC读取了地址0x8020，则用于读取CPU下一步要执行的指令的地址0x8021将储存在PC中。
