TS80C51RA2-VCA Atmel, TS80C51RA2-VCA Datasheet - Page 21

• Manufacturer Part Number: TS80C51RA2-VCA
• Description: IC MCU 8BIT 256BYTE 40MHZ 40-DIP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of TS80C51RA2-VCA

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/30MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 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: -
• Program Memory Size: -
• Data Converters: -

Figure 6-3.
4188F–8051–01/08
Clock-Out Mode C/T2 = 0
T2EX
T2
It is possible to use timer 2 as a baud rate generator and a clock generator simultaneously. For
this configuration, the baud rates and clock frequencies are not independent since both func-
tions use the values in the RCAP2H and RCAP2L registers.
Table 6-2.
XTAL1
TF2
7
(:1 in X2 mode)
T2CON Register
T2CON - Timer 2 Control Register (C8h)
EXF2
:2
6
T2CON reg
EXEN2
Q
Toggle
RCLK
T2CON reg
5
TR2
D
TCLK
4
T2CON reg
RCAP2L
EXF2
(8-bit)
(8-bit)
TL2
T2MOD reg
T2OE
EXEN2
RCAP2H
(8-bit)
(8-bit)
TH2
3
INTERRUPT
TIMER 2
OVERFLOW
TR2
AT/TS8xC51Rx2
2
C/T2#
1
CP/RL2#
0
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