AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 30

• Manufacturer Part Number: AT89C5131A-L
• Manufacturer: Atmel Corporation

Specifications of AT89C5131A-L

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 48 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 1024
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 3.6
• Timers: 4
• Isp: UART/USB
• Watchdog: Yes

Appendix-A
Table 10. Summary of Frames from Host
30
Id_prog_start
01h
Id_display_data
03h
Id_write_command
04h
Command Identifier
AT89C5131A USB Bootloader
data[0]
00h
01h
00h
01h
02h
00h
01h
02h
03h
data[1]
FFh
00h
20h
40h
00h
01h
02h
03h
04h
05h
06h
00h
00h
01h
start_address
start_address
data[2]
Value
Value
address
data[3]
end_address
end_address
data[4]
Init FLASH programming
Init EEPROM programming
Display FLASH Data
Blank Check in FLASH
Display EEPROM Data
Erase block0 (0K to 8K)
Erase block1 (8K to 16K)
Erase block2 (16K to 32K)
Full chip Erase (bits at FFh)
Write value in BSB
Write value in SBV
Write P1_CF
Write P3_CF
Write P4_CF
Write value in SSB
Write value in EB
Write value in Fuse (HSB)
Hardware reset
LJMP address
Description
4287E–USB–04/08