AT89C5122D-RDVIM Atmel, AT89C5122D-RDVIM Datasheet - Page 160
AT89C5122D-RDVIM
Manufacturer Part Number
AT89C5122D-RDVIM
Description
IC 8051 MCU W/SMART CARD 64VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
Specifications of AT89C5122D-RDVIM
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
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C5122D-RDTIM
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Registers
160
AT83R5122, AT8xC5122/23
Table 98. Interrupt Enable Register 0 - IEN0 (A8h)
Reset Value = 0000 0000b (Bit addressable)
Number
6 - 5
Bit
EA
7
7
4
3
2
1
0
Mnemonic Description
ET1
EX1
ET0
EX0
Bit
EA
ES
6
-
-
Enable All interrupt bit
Cleared to disable all interrupts.
Set to enable all interrupts.
Reserved
The value read from this bit is indeterminate. Do not change these bits.
Serial port Enable bit
Cleared to disable serial port interrupt.
Set to enable serial port interrupt.
Timer 1 overflow interrupt Enable bit
Cleared to disable timer 1 overflow interrupt.
Set to enable timer 1 overflow interrupt.
External interrupt 1 Enable bit
Cleared to disable external interrupt 1.
Set to enable external interrupt 1.
Timer 0 overflow interrupt Enable bit
Cleared to disable timer 0 overflow interrupt.
Set to enable timer 0 overflow interrupt.
External interrupt 0 Enable bit
Cleared to disable external interrupt 0.
Set to enable external interrupt 0.
5
-
ES
4
ET1
3
EX1
2
ET0
1
4202F–SCR–07/2008
EX0
0
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