sab-c161s-l25m Infineon Technologies Corporation, sab-c161s-l25m Datasheet - Page 23

• Manufacturer Part Number: sab-c161s-l25m
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

Figure 5
With its maximum resolution of 8 TCL, the GPT2 module provides precise event control
and time measurement. It includes two timers (T5, T6) and a capture/reload register
(CAPREL). Both timers can be clocked with an input clock which is derived from the CPU
clock. The count direction (up/down) for each timer is programmable by software.
Concatenation of the timers is supported via the output toggle latch (T6OTL) of timer T6,
which changes its state on each timer overflow/underflow.
The state of this latch may be used to clock timer T5. The overflows/underflows of timer
T6 can cause a reload from the CAPREL register. The CAPREL register may capture
the contents of timer T5 based on an external signal transition on the corresponding port
pin (CAPIN), and timer T5 may optionally be cleared after the capture procedure. This
allows the C161S to measure absolute time differences or to perform pulse multiplication
without software overhead.
Data Sheet
n = 3 … 10
T2EUD
T3EUD
T4EUD
T2IN
T3IN
T4IN
f
f
f
CPU
CPU
CPU
Block Diagram of GPT1
2
2
2
n
n
n
: 1
: 1
: 1
Control
Control
Control
Mode
Mode
Mode
T2
T3
T4
Capture
Capture
Reload
Reload
U/D
GPT1 Timer T2
GPT1 Timer T3
GPT1 Timer T4
19
U/D
U/D
Toggle FF
T3OTL
Functional Description
Interrupt
Request
Interrupt
Request
Other
Timers
Interrupt
Request
V1.0, 2003-11
T3OUT
MCT02141
C161S