C164CL/SL View Datasheet(PDF) - Infineon Technologies

Part Name

Description

Manufacturer

C164CL/SL

16-Bit Single-Chip Microcontroller

Infineon Technologies 

C164CI/SI

C164CL/SL

Real Time Clock

The Real Time Clock (RTC) module of the C164CI consists of a chain of 3 divider blocks,

a fixed 8:1 divider, the reloadable 16-bit timer T14, and the 32-bit RTC timer (accessible

via registers RTCH and RTCL). The RTC module is directly clocked with the on-chip

oscillator frequency divided by 32 via a separate clock driver (fRTC = fOSC/32) and is

therefore independent from the selected clock generation mode of the C164CI. All timers

count up.

The RTC module can be used for different purposes:

• System clock to determine the current time and date

• Cyclic time based interrupt

• 48-bit timer for long term measurements

T14REL

Reload

T14

RTCH

8:1

RTCL

f RTC

Interrupt

Request

MCD04432

Figure 7 RTC Block Diagram

Note: The registers associated with the RTC are not affected by a reset in order to

maintain the correct system time even when intermediate resets are executed.

Data Sheet

24

V2.0, 2001-05

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