AT89C51RD2-SLSIM Atmel, AT89C51RD2-SLSIM Datasheet - Page 83

• Manufacturer Part Number: AT89C51RD2-SLSIM
• Description: IC 8051 MCU FLASH 64K 44PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51RD2-SLSIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• For Use With: AT89STK-11 - KIT STARTER FOR AT89C51RX2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

18.4
4235K–8051–05/08
Registers
Table 18-2.
Reset Value= XXXX 0000b
Bit Number
7-4
7
3
2
1
0
-
Mnemonic
PCON Register
PCON (S87:h) Power configuration Register
GF1
GF0
IDL
PD
Bit
6
-
-
Description
Reserved
The value read from these bits is indeterminate. Do not set these bits.
General Purpose flag 1
One use is to indicate whether an interrupt occurred during normal operation or during
Idle mode.
General Purpose flag 0
One use is to indicate whether an interrupt occurred during normal operation or during
Idle mode.
Power-Down Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Power-Down mode.
If IDL and PD are both set, PD takes precedence.
Idle Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Idle mode.
If IDL and PD are both set, PD takes precedence.
5
-
4
-
GF1
3
AT89C51RD2/ED2
GF0
2
PD
1
IDL
0
83