SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 237

• Manufacturer Part Number: SAF-C161U-LF V1.3
• Description: IC MCU ISDN 16BIT TTL TQFP-100
• Manufacturer: Infineon Technologies
• Series: C16xxr

Specifications of SAF-C161U-LF V1.3

• Core Processor: C166
• Core Size: 16-Bit
• Speed: 36MHz
• Connectivity: EBI/EMI, SPI, UART/USART, USB
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Type: ROMless
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: SAFC161ULFV1.3X; SAFC161ULFV13XP; SP000007502

11.1.2.3 Timer Concatenation
Using the toggle bit T6OTL as a clock source for the auxiliary timer in counter mode
concatenates the core timer T6 with the auxiliary timer. Depending on which transition of
T6OTL is selected to clock the auxiliary timer, this concatenation forms a 32-bit or a 33-
bit timer / counter.
32-bit Timer/Counter: If both a positive and a negative transition of T6OTL is used to
clock the auxiliary timer, this timer is clocked on every overflow/underflow of the core
timer T6. Thus, the two timers form a 32-bit timer.
33-bit Timer/Counter: If either a positive or a negative transition of T6OTL is selected to
clock the auxiliary timer, this timer is clocked on every second overflow/underflow of the
core timer T6. This configuration forms a 33-bit timer (16-bit core timer+T6OTL+16-bit
auxiliary timer).
The count directions of the two concatenated timers are not required to be the same.
This offers a wide variety of different configurations.
Figure 74
Data Sheet
*)
f
hw _c lk
Note: Line ’*’ only affected by over/underflows of T6, but NOT by software
modifications of T6OTL.
E d g e
S e lec t
2
T yl
T xl
n
: 1
Concatenation of Core Timer T6 and Auxiliary Timer T5
T yR
T xR
A u xilia ry T im e r T x
C o re T im e r T y
U p/D o w n
237
T xIR
General Purpose Timer Unit
In te rru p t
R e q u e s t
In te rru p t
R e q u e s t
T yO T L
2001-04-19
M C B 02 034
C161U