AT89C5122D-RDRIM Atmel, AT89C5122D-RDRIM Datasheet - Page 181
![IC MCU 80C51 W/SMART CARD 64VQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
AT89C5122D-RDRIM
Manufacturer Part Number
AT89C5122D-RDRIM
Description
IC MCU 80C51 W/SMART CARD 64VQFP
Manufacturer
Atmel
Series
89Cr
Specifications of AT89C5122D-RDRIM
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
AT89C5122DRDRIMTR
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Smart Card Interface
Entering in Power-down Mode In order to reduce the power consumption, a power-down or idle mode can be invoked
4202F–SCR–07/2008
Detection of a SUSPEND State
Detection of a RESUME State
Note :
WUPCPU bit must be
Cleared before enabling
the PLL
Figure 109. Example of a Suspend/Resume Management
Warning: The core must be switched in external clock mode before disabling the PLL.
by software (see Table 13, PCON register). Before activating these modes the applica-
tion will need to:
Power-off the Smart Card Interface by applying the following sequence:
•
•
•
•
CPRES input:
•
•
•
•
•
Set CRST pin at low level by clearing the bit CARDRST in SCCON register.
Set CCLK pin at low level by clearing the bit CLK then the CARDCLK in SCCON
register.
Set CIO pin at low level by clearing the bit UART in SCICR register then the bit
CARDIO in SCCON register.
Power the Smart Interface off by clearing the CARDVCC bit in SCCON register. This
instruction enables to switch DC/DC converter off.
Set the bit PRSEN in ISEL register
Set the bit EX1 in IE0 register
Set the bit EA in the IE0 register
Invert the bit CPLEV in ISEL register (INT1 interrupt vector)
Clear the bit PRESIT in the ISEL register
WUPCPU
SPINT
microcontroller in power-down
AT83R5122, AT8xC5122/23
Clear WUPCPU bit
USB Controller Init
Clear SUSPCLK
Set SUSPCLK
Disable PLL
Enable PLL
Clear SPINT
Put the USB pads
in power down mode
181
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