IS80LV52 Datasheet, PDF (18/48 Pages) Integrated Silicon Solution, Inc – CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER

IS80LV52
IS80LV32
ISSI ^®
OSC
DIVIDE 12
T2 PIN
C/T2 = 0
C/T2 = 1
TRANSITION
DETECTOR
TL2
(8 BITS)
CONTROL
TR2
RELOAD
TH2
(8 BITS)
RCAP2L RCAP2H
T2EX PIN
CONTROL
EXEN2
TF2
EXF2
Figure 13. Timer 2 in Auto-Reload Mode
TIMER 2
INTERRUPT
TIMER 1
OVERFLOW
OSC
NOTE: OSC FREQ.
IS DIV BY 2, NOT 12
DIVIDE 2
C/T2 = 0
T2 PIN
C/T2 = 1
TRANSITION
DETECTOR
DIVIDE 2
"0" "1"
TL2
TH2
(8 BITS) (8 BITS)
"1" "0"
CONTROL
TR2
RELOAD ^{"1" "0"}
RCAP2L RCAP2H
SMOD
RCLK
DIVIDE 16
TCLK
DIVIDE 16
T2EX PIN
EXF2
CONTROL
EXEN2
TIMER 2
INTERRUPT
RX CLOCK
TX CLOCK
Figure 14. Timer 2 in Baud Rate Generator Mode
Note:
1. T2EX can be used as an additional external interrupt.
18
Integrated Silicon Solution, Inc. — 1-800-379-4774
ADVANCE INFORMATION MC019-0A
10/01/98