AT89C5131A-M Atmel Corporation, AT89C5131A-M Datasheet - Page 34
AT89C5131A-M
Manufacturer Part Number
AT89C5131A-M
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5130A-M.pdf
(188 pages)
2.AT89C5130A-M.pdf
(4 pages)
3.AT89C5130A-M.pdf
(34 pages)
Specifications of AT89C5131A-M
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)
2.7 to 5.5
Timers
4
Isp
UART/USB
Watchdog
Yes
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8.3.6
8.3.6.1
8.3.6.2
34
AT89C5130A/31A-M
Programming the Flash Spaces
User
Extra Row
Figure 8-5.
The following procedure is used to program the User space and is summarized in Figure 8-6:
Note:
The following procedure is used to program the Extra Row space and is summarized in Figure 8-
6:
• Load data in the column latches from address 0000h to 7FFFh
• Disable the interrupts.
• Launch the programming by writing the data sequence 50h followed by A0h in FCON
• Enable the interrupts.
• Load data in the column latches from address FF80h to FFFFh.
• Disable the interrupts.
• Launch the programming by writing the data sequence 52h followed by A2h in FCON
• Enable the interrupts.
register.
The end of the programming indicated by the FBUSY flag cleared.
register.
The end of the programming indicated by the FBUSY flag cleared.
1. The last page address used when loading the column latch is the one used to select the page
programming address.
Column Latches Loading Procedure
Column Latches Mapping
Exec: MOVX @DPTR, A
Data memory Mapping
Column Latches
DPTR = Address
ACC = Data
Data Load
Last Byte
Loading
to load?
FPS = 1
FPS = 0
(1)
.
4337K–USB–04/08
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