TS87C51RD2-MCM Atmel, TS87C51RD2-MCM Datasheet - Page 21

• Manufacturer Part Number: TS87C51RD2-MCM
• Description: IC MCU 8051 OTP 64K 5V 64VQFP
• Manufacturer: Atmel
• Series: 87Cr

Specifications of TS87C51RD2-MCM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/20MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom 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
21