复件 hcrconfig.a51

来自「TI 集成高性能24位A/D转换器的8052 核心单片机MSC1210 DATA」· A51 代码 · 共 43 行

; Define HCR0 and HCR1 while download Flash Programming
	CSEG AT 0807EH
; HCR1
	DB	11111100b
;               |||||||+- EGP0	 :  0 = Port 2,3 ist ext. mem
;               |||||||             1 = Port 2,3 is GPIO (def)
;               ||||||+-- EGP0	 :  0 = Port 0 ist ext. mem
;               ||||||              1 = Port 0 is GPIO (def)
;               |||||+--- DDB    :  0 = Enable dig. Brown out detection
;               |||||               1 = Disable deg. Brownout detection (def)
;               ||||+---- DAB    :  0 = Enable Analog Brown out detection
;               ||||                1 = Disable Analog Brownout detection (def)
;               ||++----- ABLSEL : 00 = 4.5 Volt (Analog Brown out level)
;               ||                 01 = 4.2 Volt
;               ||                 10 = 2.7 Volt
;               ||                 11 = 2.5 Volt (def)   
;               ++------- DBLSEL : 00 = 4.5 Volt (Digital Brown out level)
;                                  01 = 4.2 Volt
;                                  10 = 2.7 Volt
;                                  11 = 2.5 Volt (def)    
; HCR0
	DB	11111110b
;               |||||+++  DFSEL  :000 = Reserved
;               |||||             001 = 32 kB (16, 8, 4) data flash
;               |||||             010 = 16 kB (8, 4) data flash
;               |||||             011 = 8 kB (4) data flash
;               |||||             100 = 4 kB data flash
;               |||||             101 = 2 kB data flash
;               |||||             110 = 1 kB data flash
;               |||||             111 = no data flash (def)
;               ||||+---- EWDR   :  0 = Disable Watchdog Reset
;               ||||                1 = Enable Watchdog Reset (def)
;               |||+----- EBR    :  0 = Disable internal Boot ROM
;               |||                 1 = Enable internal Boot ROM (def)
;               ||+------ RSL    :  0 = Enable reset sector writing
;               ||                  1 = Enable read only for reset sector (def) 
;               |+------- PML    :  0 = Enable all Flash programming in program 
;               |                       mode, can be written in UAM 
;               |                   1 = Can't be written in UAM (def)
;               +-------- EPMA   :  0 = Disable flash read/write in prog mode
;                                   1 = Enable flash read/write (def)
	END