ML63611 User’s Manual
Chapter 16 A/D Converter (ADC)
16 – 14
OPTION B (D): 1.5 V (3.0 V), With regulator
circuit for LCD bias
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
➃
➈
➅
➁
➂
➀
System
clock (CLK)
ADCON1
(Bits 2 to 0)
ADCON0
(Bits 2, 1, 0)
RC oscillation
state
(CROSC0)
CNTA4 to 0
CNTB3 to 0
ADC
interrupt
request
ADINT
HLT
➆
[b]
[e]
➇
4000H – nB0
[d]
INT generated
INT generated
0000H
nB0
0000H
(Counting started by
OSCCLK (RS0))
Overflow
nA1
(Counting started by CLK)
00000
→
00000
Overflow
(Counting started by CLK)
68,000
Stop
Oscillates at RS0
Oscillates at RT0
Stop
Stop
nB0 • t
OSCCLK
(RT0) = nA1 • t
SYSCLK
nA0 • t
SYSCLK
= nB0 • t
OSCCLK
(RS0)
5H (STV = 1, SADI = 0, EADC = 1)
0H
7H (STV = 1, SADI = 1, EADC = 1)
2H
1H
2H
<Second step>
<First step>
32.768 kHz
700 kHz
(Counter A reference mode)
(Counter B reference mode)
(Counting started by
OSCCLK (RT0))
[c]
[f]
[a]
0.366 second
➉
➄
4H (STV = 1)
11
Notes: nA0 = 12,000, t
SYSCLK
= 1/32768 Hz,
➀
to : processing by software, [a] to [f]: processing by hardware
Figure 16-14 Timing Chart of One Cycle of A/D Conversion
11
Содержание ML63611
Страница 9: ...Chapter 1 Overview...
Страница 33: ...Chapter 2 CPU and Memory Spaces...
Страница 42: ...Chapter 3 CPU Control Functions...
Страница 49: ...Chapter 4 Interrupt INT...
Страница 62: ...Chapter 5 Clock Generator Circuit OSC...
Страница 71: ...Chapter 6 Time Base Counter TBC...
Страница 75: ...Chapter 7 Timers TIMER...
Страница 99: ...Chapter 8 100 Hz Timer Counter 100HzTC...
Страница 103: ...Chapter 9 Watchdog Timer WDT...
Страница 108: ...Chapter 10 Ports INPUT I O PORT...
Страница 140: ...Chapter 11 Melody Driver MELODY...
Страница 152: ...Chapter 12 Serial Port SIO...
Страница 179: ...Chapter 13 LCD Driver LCD...
Страница 200: ...Chapter 14 Battery Low Detect Circuit BLD...
Страница 204: ...Chapter 15 Power Supply Circuit POWER...
Страница 215: ...Chapter 16 A D Converter ADC...
Страница 238: ...Appendixes...
Страница 271: ...ML63611 User s Manual First Edition May 2001 Second Edition June 2001 2001 Oki Electric Industry Co Ltd PEUL63611 02...