AT89C51SND1C-7HTUL Atmel, AT89C51SND1C-7HTUL Datasheet - Page 46
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AT89C51SND1C-7HTUL
Manufacturer Part Number
AT89C51SND1C-7HTUL
Description
IC MCU 64KB FLASH MEM 81-CBGA
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT80C51SND1C-ROTIL.pdf
(213 pages)
Specifications of AT89C51SND1C-7HTUL
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
81-CBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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9.3.0.3
46
AT8xC51SND1C
Table 56. IPL0 Register
IPL0 (S:B8h) - Interrupt Priority Low Register 0
Reset Value = X000 0000b
Table 57. IPL1 Register
IPL1 (S:B2h) – Interrupt Priority Low Register 1
Number
Bit
7
7
6
5
4
3
2
1
0
7
-
-
Mnemonic Description
IPLAUD
IPLUSB
IPLAUD
IPLMP3
IPLX1
IPLX0
IPLT1
IPLT0
IPLS
Bit
6
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Audio Interface Interrupt Priority Level LSB
Refer to Table 50 for priority level description.
MP3 Decoder Interrupt Priority Level LSB
Refer to Table 50 for priority level description.
Serial Port Interrupt Priority Level LSB
Refer to Table 50 for priority level description.
Timer 1 Interrupt Priority Level LSB
Refer to Table 50 for priority level description.
External Interrupt 1 Priority Level LSB
Refer to Table 50 for priority level description.
Timer 0 Interrupt Priority Level LSB
Refer to Table 50 for priority level description.
External Interrupt 0 Priority Level LSB
Refer to Table 50 for priority level description.
IPLMP3
5
5
-
IPLKB
IPLS
4
4
IPLADC
IPLT1
3
3
IPLSPI
IPLX1
2
2
IPLI2C
IPLT0
1
1
4109L–8051–02/08
IPLMMC
IPLX0
0
0
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