AT89C5131A-M Atmel Corporation, AT89C5131A-M Datasheet - Page 83

• Manufacturer Part Number: AT89C5131A-M
• Manufacturer: Atmel Corporation

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

4337K–USB–04/08
Reset Value = X000 0000b
Not bit addressable
Table 16-5.
Number
Bit
7
6
5
4
3
2
1
0
Mnemonic
IEN1 Register
PPCH
PX1H
PX0H
PT2H
PT1H
PT0H
PSH
Bit
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA interrupt Priority high bit.
PPCH
0
0
1
1
Timer 2 overflow interrupt Priority High bit
PT2H
0
0
1
1
Serial port Priority High bit
PSH
0
0
1
1
Timer 1 overflow interrupt Priority High bit
PT1H
0
0
1
1
External interrupt 1 Priority High bit
PX1H
0
0
1
1
Timer 0 overflow interrupt Priority High bit
PT0H
0
0
1
1
External interrupt 0 Priority High bit
PX0H
0
0
1
1
PPCL
0
1
0
1
PT2L
0
1
0
1
PSL
0
1
0
1
PT1L
0
1
0
1
PX1L
0
1
0
1
PT0L
0
1
0
1
PX0L
0
1
0
1
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
AT89C5130A/31A-M
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