AT80C51SND1C-ROTUL Atmel, AT80C51SND1C-ROTUL Datasheet - Page 59

• Manufacturer Part Number: AT80C51SND1C-ROTUL
• Description: IC MCU FLASH MP3 DECODER 80-TQFP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of AT80C51SND1C-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 Type: ROMless
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 2x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

4109L–8051–02/08
Notes:
Reset Value = 0000 0000b
Table 63. TH0 Register
TH0 (S:8Ch) – Timer 0 High Byte Register
Reset Value = 0000 0000b
Table 64. TL0 Register
TL0 (S:8Ah) – Timer 0 Low Byte Register
1. Reloaded from TH1 at overflow.
2. Reloaded from TH0 at overflow.
Number
Number
Bit
7
6
5
4
3
2
1
0
Bit
7:0
7
7
-
-
Mnemonic Description
GATE1
GATE0
C/T1#
C/T0#
M11
M01
M10
M00
Mnemonic Description
Bit
Bit
6
6
-
-
Timer 1 Gating Control Bit
Clear to enable Timer 1 whenever TR1 bit is set.
Set to enable Timer 1 only while INT1 pin is high and TR1 bit is set.
Timer 1 Counter/Timer Select Bit
Clear for Timer operation: Timer 1 counts the divided-down system clock.
Set for Counter operation: Timer 1 counts negative transitions on external pin T1.
Timer 1 Mode Select Bits
M11M01 Operating mode
Timer 0 Gating Control Bit
Clear to enable Timer 0 whenever TR0 bit is set.
Set to enable Timer/Counter 0 only while INT0 pin is high and TR0 bit is set.
Timer 0 Counter/Timer Select Bit
Clear for Timer operation: Timer 0 counts the divided-down system clock.
Set for Counter operation: Timer 0 counts negative transitions on external pin T0.
Timer 0 Mode Select Bit
M10M00Operating mode
TH0 is an 8-bit Timer using Timer 1’s TR0 and TF0 bits.
0 0 Mode 0: 8-bit Timer/Counter (TH1) with 5-bit prescaler (TL1).
0 1 Mode 1: 16-bit Timer/Counter.
1 0 Mode 2: 8-bit auto-reload Timer/Counter (TL1).
1 1 Mode 3: Timer 1 halted. Retains count.
0 0Mode 0: 8-bit Timer/Counter (TH0) with 5-bit prescaler (TL0).
0 1Mode 1: 16-bit Timer/Counter.
1 0Mode 2: 8-bit auto-reload Timer/Counter (TL0).
1 1Mode 3: TL0 is an 8-bit Timer/Counter.
High Byte of Timer 0
5
5
-
-
4
4
-
-
3
3
-
-
AT8xC51SND1C
2
2
-
-
(1)
(2)
1
1
-
-
0
0
-
-
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