SAF-C161U-LF V1.3 Infineon Technologies, SAF-C161U-LF V1.3 Datasheet - Page 299

• 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

The following figure shows the additional necessary differentiating circuits for the
interrupt logic:
Figure 94
13.2.11
The Peripheral Kernel of the RTC can be disabled, if the RTC functionality is not used.
In this case only the bus interface is enabled. Disabling the RTC module reduces the
power consumption and the generated noise of the complete system. The disable
request can be set in two different ways. The bit RTCDIS (if implemented in C161U) of
the central peripheral control register SYSCON3 controls the disable request of the RTC
module. Additional the request can be set with bit RTCDISR inside the RTC Clock
Control register (RTCCLC). The central and the local disable requests are ored. Clearing
the respective disable request flag enables the RTC module again. Note that both
request flags have to be cleared for enabling the RTC module. An activated request flag
sets directly the disabling status flag RTCDISS inside the RTCCLC register and disables
the clock within the Clock Gating Module. Since the RTCCLC register is clocked with the
Data Sheet
Note:
RTC_T14INT
RTC0INT
RTC1INT
RTC2INT
RTC3INT
1)
RTCISNC manually. Otherwise no further interrupts can be detected.
The ISR (Interrupt Service Routine) must delete the IR flag in register
RTC Disable Functionality
Differentiating Circuits for RTC interrupt
Diff.
Circuit
Diff.
Circuit
Diff.
Circuit
Diff.
Circuit
Diff.
Circuit
RTCISNC
RTC0
RTC0
RTC1
RTC1
RTC2
RTC2
RTC3
RTC3
T14
T14
IR
IR
IR
IR
IR
IE
IE
IE
IE
IE
1)
1)
1)
1)
1)
299
&
&
&
&
&
1
Real Time Clock (RTC)
Pulse
Generation
2001-04-19
C161U