AT87F55WD-24PC Atmel, AT87F55WD-24PC Datasheet - Page 10

• Manufacturer Part Number: AT87F55WD-24PC
• Description: IC MICRO CTRL 24MHZ 40DIP
• Manufacturer: Atmel
• Series: 87Fr

Specifications of AT87F55WD-24PC

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: OTP Quick FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT87F55WD24PC

Figure 6. Timer 2 Auto Reload Mode (DCEN = 0)
Table 5. T2MOD – Timer 2 Mode Control Register
10
Symbol
–
T2OE
DCEN
T2EX PIN
T2MOD Address = 0C9H
Not Bit Addressable
Bit
OSC
T2 PIN
–
7
Function
Not implemented, reserved for future
Timer 2 Output Enable bit.
When set, this bit allows Timer 2 to be configured as an up/down counter.
AT87F55WD
12
TRANSITION
DETECTOR
–
6
C/T2 = 0
C/T2 = 1
–
5
EXEN2
CONTROL
TR2
–
4
CONTR OL
RELO AD
–
3
RCAP2H
TH2
RCAP2L
–
2
TL2
Reset Value = XXXX XX00B
T2OE
OVERFLOW
1
EXF2
TF2
DCEN
0
INTERRUPT
TIMER 2