C868_02 Datasheet, PDF (198/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
Interrupt System
.
T2CON
Timer 2 Control Register
[Reset value: 00_H]
CF_H
CE_H
CD_H
CC_H
CB_H
CA_H
C9_H
C8_H
TF2
EXF2
RCLK
TCLK EXEN2
TR2
C/T2 CP/RL2
rwh
rwh
rw
rw
rw
rw
rw
rw
The functions of the shaded bits are not described here
Field
EXF2
TF2
Bits Typ Description
6
rwh Timer/counter 2 External Flag
This bit is set by hardware when a capture/reload
occurred upon a negative transition at pin T2EX, if bit
EXEN2=1. An interrupt request to the core is
generated, unless bit DCEN=1. This bit must be
cleared by software.
7
rw Timer 2 Overflow Flag
Set by a timer 2 overflow. Must be cleared by
software. TF2 will not be set when either RCLK=1 or
TCLK=1.
The timer 2 interrupt is generated by bit TF2 or EXF2 in register T2CON. This flags are
not cleared by hardware when the service routine is vectored to. They should be cleared
by software.
User’s Manual
7-14
V 0.4, 2002-01