sak-c868p-1rr Infineon Technologies Corporation, sak-c868p-1rr Datasheet - Page 74

• Manufacturer Part Number: sak-c868p-1rr
• Description: 8 - Bit Cmos Microcontroller
• Manufacturer: Infineon Technologies Corporation

Figure 4-9
4.6.8
The count clock for the auto-reload mode is chosen by the bit C/T2 in register T2CON.
If C/T2 = 0, a count clock of f
If C/T2 = 1, timer 2 behaves as a counter that counts 1-to-0 transitions of input pin T2.
The counter samples pin T2 over 2 f
and a 0 was detected in the following clock, then the counter increments by one.
Therefore, the input levels should be stable for at least 1 clocks.
4.6.9
The timer/counter 2 is disabled when the chip goes into the powerdown mode as
describe in . Or it can be individually disabled by setting T2DIS in register PMCON1.
This helps to reduce current consumption in the normal, slow down and idle modes of
operation if the timer/counter 2 is not utilized. Bit T2ST in register PMCON2 reflects the
powerdown status of timer/counter 2.
User’s Manual
f
SYS
T2EX
Pin
Pin
T2
Count Clock
Module Powerdown
12
C/T2 = 0
C/T2 = 1
Baudrate Generator Mode
SYS
TR2
/12 is used for the count operation.
EXEN2
SYS
cycles. If a 1 was detected during the first clock
4-30
RC2L/H
T2L/H
On-Chip Peripheral Components
Overflow
EXF2
OV_CLK
Interrupt
Timer 2
V 1.0, 2003-01
C868