at89ls8252 ATMEL Corporation, at89ls8252 Datasheet - Page 12

• Manufacturer Part Number: at89ls8252
• Description: At89ls8252, Low Voltage, Downloadable Mcu With 8k Bytes Flash And 2k Bytes Eeprom. For New Designs Use At89s8253.
• Manufacturer: ATMEL Corporation

Figure 3. Timer 2 Auto Reload Mode (DCEN = 1)
Figure 4. Timer 2 in Baud Rate Generator Mode
12
T2EX PIN
OSC
AT89LS8252
T2 PIN
÷
2
TRANSITION
DETECTOR
NOTE: OSC. FREQ. IS DIVIDED BY 2, NOT 12
C/T2 = 0
C/T2 = 1
EXEN2
TR2
CONTROL
CONTROL
RCAP2H
TH2
EXF2
RCAP2L
TL2
INTERRUPT
TIMER 2
÷
2
"1"
"1"
TIMER 1 OVERFLOW
"0"
"0"
"0"
"1"
÷
SMOD1
RCLK
TCLK
÷
16
16
0850C–MICRO–3/06
CLOCK
CLOCK
Rx
Tx