AT89C51ID2 Atmel Corporation, AT89C51ID2 Datasheet - Page 114

• Manufacturer Part Number: AT89C51ID2
• Manufacturer: Atmel Corporation

Specifications of AT89C51ID2

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 2
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

Registers
114
AT89C51ID2
Table 86. EECON Register
EECON (0D2h)
EEPROM Control Register
Reset Value = XXXX XX00b
Not bit addressable
Bit Number
7 - 2
7
-
1
0
Mnemonic
EEBUSY
6
EEE
-
Bit
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Enable EEPROM Space bit
Set to map the EEPROM space during MOVX instructions (Write or Read to
the EEPROM .
Clear to map the XRAM space during MOVX.
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.
5
-
4
-
3
-
2
-
EEE
1
4289C–8051–11/05
EEBUSY
0