SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 409

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

SYSCON2
System Control Reg.2
Bit
SYSRLS
PDCON
RCS
SCS
CLKCON
CLKREL
CLKLOCK
Note: SYSCON2 (except for bitfield SYSRLS) is write protected after the execution of
User’s Manual
LOCK
CLK
15
rh
EINIT unless it is released via the unlock sequence (see
14
13
CLKREL
Function
Register Release Function (Unlock field)
Must be written in a defined way in order to execute the unlock
sequence. See separate description
Power Down Control (during power down mode)
00:
01:
10:
11:
RTC Clock Source (not affected by a reset!)
0:
1:
SDD Clock Source (not affected by a reset!)
0:
1:
00:
01:
10:
11:
Reload Counter Value for Slowdown Divider
(SDD factor = CLKREL + 1)
Clock Signal Status Bit
0:
1:
Clock State Control
12
rw
RTC = On,
RTC = On,
RTC = Off,
RTC = Off,
Main oscillator.
Reserved.
Main oscillator.
Reserved.
Running on configured basic frequency.
Running on slow down frequency, PLL remains ON.
Running on slow down frequency, PLL switched OFF.
Reserved. Do not use this combination.
Main oscillator is unstable or PLL is unlocked.
Main oscillator is stable and PLL is locked.
11
10
ESFR (F1D0
CLKCON SCS RCS
9
rw
8
21-13
Ports = On (default after reset).
Ports = Off.
Ports = On.
Ports = Off.
rw
7
H
/E8
rw
6
H
)
(Table
PDCON
5
rw
21-6).
4
Table
Power Management
Reset Value: 00X0
C164CM/C164SM
3
21-6).
SYSRLS
2
Derivatives
V1.0, 2002-02
rwh
1
0
H