SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 421

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

;________________________;______________________________________
SDD_EXIT_MANUAL:
MOV
EXTR
BFLDL SYSCON2,#0FH,#09H
MOV
BSET
BFLDH SYSCON2,#03H,#01H ;CLKCON=01B --> stay on SDD/start PLL *!*
USER_CODE:
CLOCK_OK:
EXTR
JNB
MOV
EXTR
BFLDL SYSCON2,#0FH,#09H
MOV
BSET
BFLDH SYSCON2,#03H,#00H ;CLKCON=00B --> basic frequency
EXTR
BSET
User’s Manual
SYSCON2, ZEROS
#4H
SYSCON2,#0003H
SYSCON2.2
#1H
SYSCON2.15,CLOCK_OK;Wait until clock OK (CLKLOCK=’1’)
SYSCON2, ZEROS
#4H
SYSCON2,#0003H
SYSCON2.2
#1H
ISNC.2
;Currently running on SDD frequency
;Clear bits 3-0 (no EXTR required here)
;Switch to ESFR space and lock sequence
;Unlock sequence, step 1 (1001B)
;Unlock sequence, step 2 (0011B)
;Unlock sequence, step 3 (0111B)
;Single access to one locked register
;
;Space for any user code that...
;...must or can be executed before...
;...switching back to basic clock
;Next access to ESFR space
;
;Clear bits 3-0 (no EXTR required here)
;Switch to ESFR space and lock sequence
;Unlock sequence, step 1 (1001B)
;Unlock sequence, step 2 (0011B)
;Unlock sequence, step 3 (0111B)
;Single access to one locked register
;Next access to ESFR space
;PLLIE=’1’, i.e. PLL interrupt enabled
21-25
Power Management
C164CM/C164SM
Derivatives
V1.0, 2002-02
*!*