AT89C51RC2 Atmel Corporation, AT89C51RC2 Datasheet - Page 104

• Manufacturer Part Number: AT89C51RC2
• Manufacturer: Atmel Corporation

Specifications of AT89C51RC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Sram (kbytes): 1.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

ISP Commands Summary
104
AT89C51RB2/RC2
Table 73. ISP Commands Summary
Command
00h
03h
04h
05h
Command Name
Display Function
Write Function
Read Function
Program Data
Data[4] = 00h -> Display data
Data[4] = 01h -> Blank check
Data[0:1] = start address
Data [2:3] = end address
Data[0]
0Ah
0Bh
0Eh
01h
03h
04h
05h
06h
07h
00h
07h
0Fh
Data[1]
C0h
00h
20h
40h
80h
00h
00h
00h
01h
00h
01h
02h
04h
08h
00h
01h
02h
03h
00h
01h
02h
06h
00h
00h
01h
00h
-
Command Effect
Program Nb Data Byte.
Bootloader will accept up to 128 (80h)
data Bytes. The data Bytes should be
128 Byte page Flash boundary.
Erase block0 (0000h-1FFFh)
Erase block1 (2000h-3FFFh)
Erase block2 (4000h-7FFFh)
Erase block3 (8000h- BFFFh)
Erase block4 (C000h- FFFFh)
Hardware Reset
Erase SBV & BSB
Program SSB level 1
Program SSB level 2
Program BSB (value to write in data[2])
Program SBV (value to write in data[2])
Program Osc fuse (value to write in
data[2])
Program BLJB fuse (value to write in
data[2])
Program X2 fuse (value to write in
data[2])
Display Data
Note: The maximum number of data
that can be read with a single
command frame (difference between
start and end address) is 1kbyte.
Blank Check
Full Chip Erase (This command needs
about 6 sec to be executed)
Read Bootloader Version
Read Device Boot ID1
Read Device Boot ID2
Read Hardware Byte
Read Extra Byte
Manufacturer ID
Device ID #1
Device ID #2
Device ID #3
Read SSB
Read BSB
Read SBV
4180E–8051–10/06