TIMERS and TIMER/COUNTERS
KS57C2308/P2308/C2316/P2316
11-26
+
+
PROGRAMMING TIP — Using the Watch Timer
1. Select a subsystem clock as the LCD display clock, a 0.5 second interrupt, and 2 kHz buzzer enable:
BITS
EMB
SMB
15
LD
EA,#04H
LD
PMG2,EA
; P2.3
←
output mode
BITR
P2.3
LD
EA,#85H
LD
WMOD,EA
BITS
IEW
2. Sample real-time clock processing method:
CLOCK
BTSTZ
IRQW
; 0.5 second check
RET
; No, return
•
; Yes, 0.5 second interrupt generation
•
•
; Increment HOUR, MINUTE, SECOND
Summary of Contents for KS57C2308
Page 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Page 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Page 170: ......
Page 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Page 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Page 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Page 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Page 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Page 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Page 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
Page 318: ......
Page 320: ......
Page 322: ......
Page 325: ......
Page 327: ......