SAB-XC167CI-16F20F INFINEON [Infineon Technologies AG], SAB-XC167CI-16F20F Datasheet - Page 39

• Manufacturer Part Number: SAB-XC167CI-16F20F
• Description: 16-Bi t Single-Chip Microcontroller Preliminary
• Manufacturer: INFINEON [Infineon Technologies AG]

Preliminary
3.9
The Real Time Clock (RTC) module of the XC167 is directly clocked via a separate clock
driver with the on-chip auxiliary oscillator frequency (
independent from the selected clock generation mode of the XC167.
The RTC basically consists of a chain of divider blocks:
• a selectable 8:1 divider (on - off)
• the reloadable 16-bit timer T14
• the 32-bit RTC timer block (accessible via registers RTCH and RTCL), made of:
All timers count up. Each timer can generate an interrupt request. All requests are
combined to a common node request. Additionally, T14 can generate a separate node
request.
Figure 9
Note: The registers associated with the RTC are not affected by a reset in order to
Data Sheet
f
– a reloadable 10-bit timer
– a reloadable 6-bit timer
– a reloadable 6-bit timer
– a reloadable 10-bit timer
RTC
maintain the correct system time even when intermediate resets are executed.
RUN
Real Time Clock
RTC Block Diagram
T14-Register
T14REL
8
PRE
T14
1
0
MUX
10 Bits
10 Bits
INT0
CNT
35
6 Bits
6 Bits
REL-Register
CNT-Register
INT1
CNT
Interrupt Sub Node
f
6 Bits
6 Bits
RTC
INT2
CNT
=
Functional Description
f
OSCa
mcb04805_xc.vsd
10 Bits
10 Bits
). It is therefore
INT3
CNT
Derivatives
V1.0, 2002-10
RTCINT
XC167