C868 Datasheet, PDF (39/82 Pages) Infineon Technologies AG – 8-Bit Single-Chip Microcontroller

C868
Timer/Counter 2 with Compare/Capture/Capture
Timer 2 is a 16-bit timer/counter with an up/down count feature. It has three operating
modes:
• 16-bit auto-reload mode (up or down counting)
• 16-bit capture mode
• Baudrate generator
Table 9
Timer/Counter 2 Operating Modes
Mode
T2CON
T2MOD T2CON T2EX Remarks
System
Clock
RCLK CP/ TR2 DCEN EXEN
or RL2
TCLK
Inte- T2
rnal
16-bit
0
0
10
0
X
reload upon f_SYS max
Auto-
overflow
/12 f_SYS
reload
0
0
X
0
1
reload trigger
/24
(falling edge)
0
0
1
1
X
0
down counting
0
0
1
1
X
1
up counting
16-bit
0
1
1X
0
X
16-bit Timer/ f_SYS max
Capture
Counter (only /12 f_SYS
up-counting)
/24
0
1
1
X
1
capture
T2H,T2L->
RC2H,RC2L
Baudrate 1
X
1
X
0
X
no overflow f_SYS -
Generator
interrupt
/2
request(TF2)
1
X
1
X
1
extra external
interrupt
(“Timer 2“)
off
XX0 X
X
X Timer 2 stops - -
Note: denotes a falling edge
Data Sheet
39
V 1.0, 2003-05