參數(shù)資料
型號(hào): P89C662HBA
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 80C51 8-bit Flash microcontroller family
中文描述: 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, MS-018, SOT-187-2, LCC-44
文件頁數(shù): 73/89頁
文件大?。?/td> 491K
代理商: P89C662HBA
Philips Semiconductors
Product data
P89C660/P89C662/P89C664/
P89C668
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
2002 Oct 28
73
IAP CALL
PARAMETER
READ SECURITY BITS
Input Parameters:
R0 = osc freq (integer)
R1 = 07h
R1 = 87h (WDT feed, Rx2 & 66x only)
DPH = 00h
DPL = 00h (security bits)
Return Parameter
ACC = value of byte read
Sample routine:
;*****reads the Security Bits (SBits) *****
;***** SBits returned in ACC (2:0)
RDSBits:
MOV
AUXR1,#20H
MOV
R0,#11
MOV
R1,#07H
MOV
DPTR,#0000H
CALL
PGM_MTP
RET
;set the ENBOOT bit
;FOSC
;read misc function
;specify security bits
;execute the function
READ STATUS BYTE
Input Parameters:
R0 = osc freq (integer)
R1 = 07h
R1 = 87h (WDT feed, Rx2 & 66x only)
DPH = 00h
DPL = 01h (status byte)
Return Parameter
ACC = value of byte read
Sample routine:
;*****reads the Status Byte (SB) *****
;***** SB returned in ACC
RDSB:
MOV
AUXR1,#20H
MOV
R0,#11
MOV
R1,#07H
MOV
DPTR,#0001H
CALL
PGM_MTP
RET
;set the ENBOOT bit
;FOSC
;read misc function
;specify status byte
;execute the function
READ BOOT VECTOR
Input Parameters:
R0 = osc freq (integer)
R1 = 07h
R1 = 87h (WDT feed, Rx2 & 66x only)
DPH = 00h
DPL = 02h (boot vector)
Return Parameter
ACC = value of byte read
Sample routine:
;*****reads the Boot Vector (BV) *****
;***** BV returned in ACC
RDBV:
MOV
AUXR1,#20H
MOV
R0,#11
MOV
R1,#07H
MOV
DPTR,#0002H
CALL
PGM_MTP
RET
;set the ENBOOT bit
;FOSC
;read misc function
;specify boot vector
;execute the function
相關(guān)PDF資料
PDF描述
P89C662HBBD 80C51 8-bit Flash microcontroller family
P89C664HBA 80C51 8-bit Flash microcontroller family
P89C664HBBD 80C51 8-bit Flash microcontroller family
P89C662 80C51 8-Bit Flash Microcontroller 32KB ISP/IAP FLASH with 1KB RAM(80C51 8位閃速微控制器,帶16KB ISP/IAP閃速存儲(chǔ)器和1KB RAM)
P89C668HBA 80C51 8-bit Flash microcontroller family 64KB ISP FLASH with 8KB RAM
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