AT89C5122D-RDRUM Atmel, AT89C5122D-RDRUM Datasheet - Page 166

• Manufacturer Part Number: AT89C5122D-RDRUM
• Description: IC 8051 MCU 32K CRAM USB 64-VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-RDRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT89C5122D-RDRUMTR

166
AT83R5122, AT8xC5122/23
Table 105. Interrupt Priority High Register 1 - IPH1 (B3h) for AT8xC5122
Reset Value = XXXX X000b (Not bit addressable)
Number
Bit
5-4
7
6
3
2
1
0
7
-
Mnemonic
PUSBH
PUSBH
PSCIH
PSPIH
PKBH
Bit
6
-
-
-
Reserved
The value read from this bit is indeterminate. Do not change this bit.
USB Interrupt Priotity High bit
PUSBH PUSBL
Reserved
The value read from this bit is indeterminate. Do not change these bits.
SCI Interrupt Priority High bit
SPI Interrupt Priority High bit
Reserved
The value read from this bit is indeterminate. Do not change this bit.
Keyboard Interrupt Priority High bit
PKBDH PKBDL
PSCIH
PSPIH
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
5
-
PSCIL
PSPIL
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
-
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
PSCIH
3
Description
2
1
-
4202F–SCR–07/2008
0