C501_1 Datasheet, PDF (81/121 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller

Interrupt System
C501
Special Function Register T2CON (Address C8H)
Reset Value : 00H
Bit No.
C8H
MSB
CF_H
CE_H CD_H
CC_H
CB_H CA_H
LSB
C9_H C8_H
TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 CP/RL2 T2CON
Bit
EXEN2
The shaded bits are not used for interrupt enable control.
Function
Timer 2 External Enable.
When set, allows a capture or reload to occur as a result of a negative transition on
pin T2EX (P1.1) if timer 2 is not being used to clock the serial port. EXEN2 = 0
causes timer 2 to ignore events at T2EX.
Semiconductor Group
7-3