s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 255

• Manufacturer Part Number: s3c72m9
• Description: The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
• Manufacturer: Samsung Semiconductor, Inc.

S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
F
1. To read the basic timer count register (BCNT):
BCNTR
2. When stop mode is released by an interrupt, set the oscillation stabilization interval to 31.3 ms:
3. To set the basic timer interrupt interval time to 1.95 ms (at 4.19 MHz):
4. Clear BCNT and the IRQB flag and restart the basic timer:
PROGRAMMING TIP — Using the Basic Timer
Operation
CPU
BITS
SMB
LD
LD
LD
CPSE
JR
BITS
SMB
LD
LD
STOP
NOP
NOP
NOP
BITS
SMB
LD
LD
EI
BITS
BITS
SMB
BITS
Normal Mode
EMB
15
EA,BCNT
YZ,EA
EA,BCNT
EA,YZ
BCNTR
EMB
15
A,#0BH
BMOD,A
EMB
15
A,#0FH
BMOD,A
IEB
EMB
15
BMOD.3
Instruction
STOP
Stop Mode
Stop Mode is
Released by
Interrupt
; Wait time is 31.3 ms
; Set stop power-down mode
; Basic timer interrupt enable flag is set to "1"
Idle Mode
(31.3 ms)
Normal Mode
TIMERS and TIMER/COUNTERS
11-7