AT89C51SND1C-ROTUL Atmel, AT89C51SND1C-ROTUL Datasheet - Page 63

• Manufacturer Part Number: AT89C51SND1C-ROTUL
• Description: IC 8051 MCU FLASH 64K MP3 80TQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND1C-ROTUL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IDE/ATAPI, MMC, SPI, UART/USART, USB
• Peripherals: Audio, I²S, MP3, PCM, POR, WDT
• Number Of I /o: 44
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 2x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12.4
4109L–8051–02/08
Registers
Table 68. WDTRST Register
WDTRST (S:A6h Write only) – Watchdog Timer Reset Register
Reset Value = XXXX XXXXb
Figure 12-4. WDTPRG Register
WDTPRG (S:A7h) – Watchdog Timer Program Register
Reset Value = XXXX X000b
Number
Number
7 - 0
7 - 3
2 - 0
Bit
Bit
7
7
-
-
Mnemonic Description
Mnemonic Description
WTO2:0
Bit
Bit
6
6
-
-
-
-
Watchdog Control Value
Reserved
The value read from these bits is indeterminate. Do not set these bits.
Watchdog Timer Time-Out Selection Bits
Refer to Table 67 for time-out periods.
5
5
-
-
4
4
-
-
3
3
-
-
AT8xC51SND1C
WTO2
2
2
-
WTO1
1
1
-
WTO0
0
0
-
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