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Re: pic18f458 的ACCESS BANK
#2
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a = 0 ,運算結果置於 Access Bank 的 RAM
a = 1 實際的位址由 BSR 與 8-bit 的RAM 位址組成的 4K RAM位址裡的一個 RAM (不指定a時,內定 a=1)
BSR : Bank Selecter Register 共切成 16 BANK RAM 每個 256bytes.
Access Bank: 不用切換BANK的RAM

發表於: 2007/9/26 18:58
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pic18f458 的ACCESS BANK
#1
高級會員
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Dear all,

我看pic18f458的datasheet的p.46介紹RAM的配置,其中Access Bank部分,有a=0 或a= 1.
a=1,the BSR is ignored and Acces Bank is used.
a=0,the BSR is used to specify the RAM location.
請問什麼是a呢?a在哪設定他為1或0?是個暫存器嗎?

Thanks very much.

發表於: 2007/9/26 16:18
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