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Download Microcontrollers 8-Bit Single-Chip Microcontroller
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XC864 Flash Memory 4.7.5 Flash Bank Read Status Each call of the Flash bank read status subroutine allows the checking of ready-to-read status of the Flash bank. Before calling this subroutine, the user must ensure that the ACC SFR is set accordingly (see Table 4-7). Table 4-7 Flash Bank Read Status Subroutine Subroutine DFF0H: FLASH_READ_STATUS Input ACC: Select desired Flash bank for ready-to-read status. 03H = 4-Kbyte Flash Others = Invalid1) Output PSW.CY: 0 = Flash bank is not in ready-to-read mode 1 = Flash bank is in ready-to-read mode Stack size required 5 Resource used/destroyed ACC 1) For invalid ACC input, PSW.CY will be 0. User’s Manual Flash Memory, V 1.0 4-17 V1.0, 2008-06
