參數(shù)資料
型號: AT89C51AC2-SLSUM
廠商: Atmel
文件頁數(shù): 48/121頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
產(chǎn)品培訓模塊: MCU Product Line Introduction
標準包裝: 972
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: UART/USART
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 2K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉換器: A/D 8x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
32
A/T89C51AC2
4127H–8051–02/08
Registers
Table 21. EECON Register
EECON (S:0D2h)
EEPROM Control Register
Reset Value = XXXX XX00b
Not bit addressable
7
6
5
4
3
2
1
0
EEPL3
EEPL2
EEPL1
EEPL0
-
EEE
EEBUSY
Bit Number
Bit
Mnemonic
Description
7-4
EEPL3-0
Programming Launch command bits
Write 5Xh followed by AXh to EEPL to launch the programming.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
EEE
Enable EEPROM Space bit
Set to map the EEPROM space during MOVX instructions (Write in the column
latches)
Clear to map the XRAM space during MOVX.
0
EEBUSY
Programming Busy flag
Set by hardware when programming is in progress.
Cleared by hardware when programming is done.
Can not be set or cleared by software.
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