AT89C51ID2 Atmel Corporation, AT89C51ID2 Datasheet - Page 134

• 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

Example
Read Function
Description
Figure 56. Read Flow
4289C–8051–11/05
COMMAND FINISHED
Wait Value of Data
Send Read Command
OR
Host
OR
COMMAND ABORTED
COMMAND ABORTED
Wait Checksum Error
Wait Security Error
This flow is similar for the following frames:
•
•
Display data from address 0000h to 0020h
BOOTLOADER
BOOTLOADER
BOOTLOADER
HOST
BOOTLOADER
Reading Frame
EOF Frame/ Atmel Frame (only reading Atmel Frame)
’value’ & ’.’ & CR & LF
Read Command
’L’ & CR & LF
’X’ & CR & LF
0000=-----data------ CR LF
0010=-----data------ CR LF
0020=data CR LF
: 05 0000 04 0000 0020 00 D7
: 05 0000 04 0000 0020 00 D7
Send Checksum error
Send Security error
Bootloader
Wait Read Command
(16 data)
(16 data)
( 1 data)
RD_WR_SECURITY
Send Data Read
Checksum error
Read Value
AT89C51ID2
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