AT89C51AC2 Atmel Corporation, AT89C51AC2 Datasheet - Page 5

• Manufacturer Part Number: AT89C51AC2
• Manufacturer: Atmel Corporation

Specifications of AT89C51AC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 40 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 1.25
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

14. Timer1
4159G–8051–05/06
The timer1, when used as a baud rate generator in mode 1 (16 bits counter) for low baud rates, does not generate
baud rate to UART.
Workaround
No
.
–
in Mode 1 Does Not Generate Baud Rate to UART
Mov
Mov
Load_eeprom:
WAIT_FBUSY:
End_loop:
MovEECON, #02h
MovA, #Tab_eep
Movc
Movx
Mov EECON, #050h
Mov EECON, #0A0h
Mov
AnlA, #001h
Xrl A, #001h
JzWAIT_FBUSY
Inc
Djnz
jmp End_loop
Tab_eep: DB
R1, #SIZE_EEPROM
DPTR, #0h
A, EECON
@DPTR, A
DPTR
R1, Load_eeprom
A, @A + DPTR
012h, 023h, 045h, 067h, 089h, 0ABh, 0CDh, 0EFh
; set bit EEE for access to the column latches
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