ST7232AK1B1 Datasheet

IC型号：
ST7232AK1B1
PDF描述：
8-BIT MCU WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFA...
文件大小：
1290.53KB
PDF页数：
154页
芯片厂家：
STMICROELECTRONICS

阅览下载纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154

ST7232A

16-BIT TIMER

(Cont鈥檇)

10.3.3.4 Output Compare

In this section, the index,

may be 1 or 2 because

there are 2 output compare functions in the 16-bit

timer.

This function can be used to control an output

waveform or indicate when a period of time has

elapsed.

When a match is found between the Output Com-

pare register and the free running counter, the out-

put compare function:

鈥?Assigns pins with a programmable value if the

OCiE bit is set

鈥?Sets a flag in the status register

鈥?Generates an interrupt if enabled

Two 16-bit registers Output Compare Register 1

(OC1R) and Output Compare Register 2 (OC2R)

contain the value to be compared to the counter

OCiR

MS Byte

OCiHR

LS Byte

OCiLR

鈥?The OCMPi pin takes OLVLi bit value (OCMPi

pin latch is forced low during reset).

鈥?A timer interrupt is generated if the OCIE bit is

set in the CR1 register and the I bit is cleared in

the CC register (CC).

The OC

R register value required for a specific tim-

ing application can be calculated using the follow-

ing formula:

鈭?/div>

OCiR =

鈭唗

CPU

PRESC

Where:

鈭?/div>

= Output compare period (in seconds)

CPU

= CPU clock frequency (in hertz)

PRESC

= Timer prescaler factor (2, 4 or 8 de-

pending on CC[1:0] bits, see

Table 16

Clock Control Bits)

If the timer clock is an external clock, the formula

is:

These registers are readable and writable and are

not affected by the timer hardware. A reset event

changes the OC

R value to 8000h.

Timing resolution is one count of the free running

counter: (

CPU/

CC[1:0]

Procedure:

To use the output compare function, select the fol-

lowing in the CR2 register:

鈥?Set the OCiE bit if an output is needed then the

OCMPi pin is dedicated to the output compare

signal.

鈥?Select the timer clock (CC[1:0]) (see

Table 16

Clock Control Bits).

And select the following in the CR1 register:

鈥?Select the OLVLi bit to applied to the OCMPi pins

after the match occurs.

鈥?Set the OCIE bit to generate an interrupt if it is

needed.

When a match is found between OCRi register

and CR register:

鈥?OCFi bit is set.

鈭?/div>

OCiR =

鈭唗

EXT

Where:

鈭?/div>

= Output compare period (in seconds)

EXT

= External timer clock frequency (in hertz)

Clearing the output compare interrupt request (i.e.

clearing the OCFi bit) is done by:

1. Reading the SR register while the OCFi bit is

set.

2. An access (read or write) to the OCiLR register.

The following procedure is recommended to pre-

vent the OCFi bit from being set between the time

it is read and the write to the OC

R register:

鈥?Write to the OCiHR register (further compares

are inhibited).

鈥?Read the SR register (first step of the clearance

of the OCFi bit, which may be already set).

鈥?Write to the OCiLR register (enables the output

compare function and clears the OCFi bit).

60/154

prev next

ST7232AK1B1相关型号PDF文件下载

型号

版本

描述

厂商

下载
ST7250

英文版

8-BIT MCU FOR CAN WITH 32K ROM, 1K RAM, EEPROM, ADC, WDG, PW...

ST7250
ST7250

英文版

8-BIT MCU FOR CAN WITH 32K ROM, 1K RAM, EEPROM,ADC, WDG, PWM...

STMicro

ST7250
ST7260

英文版

LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 8K FLASH/ROM AND S...

ST7260
ST7261

英文版

ST7 - LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH MEMORY...

ST7261
ST7262

英文版

LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR ROM MEMOR...

ST7262
ST7263

英文版

LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY, up to ...

ST7263
ST7263

英文版

LOW SPEED USB 8-BIT MCU FAMILY with up to 16K MEMORY,

STMicro

ST7263
ST7265

英文版

ST7 - LOW-POWER. FULL-SPEED USB 8-BIT MCU WITH 32K FLASH. 5K...

ETC

ST7265
ST7265

英文版

ST7 - LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K...

ST7265
ST7267

英文版

USB 2.0 HIGH SPEED MASS STORAGE MICROCONTROLLER

ST

ST7267
ST7271

英文版

8-BIT HCMOS MCUs WITH EEPROM AND TV/MONITOR DEDICATED FUNCTI...

ST7271
ST7271

英文版

8-BIT HCMOS MCUs WITH EEPROM AND TV/MONITOR DEDICATED FUNCTI...

STMICROELECTRON...

ST7271
ST7272

英文版

8-BIT MCU WITH 24K ROM, EEPROM,ADC,PWM/BRM DACs,SYNC PROCESS...

ST7272
ST7272

英文版

8-BIT MCU WITH 24K ROM, EEPROM,ADC,PWM/BRM DACs,SYNC PROCESS...

STMICROELECTRON...

ST7272
ST7277

英文版

8-BIT USB MCU FOR MONITORS WITH UP TO 60K ROM, 2K RAM, ADC, ...

ST7277
ST7277

英文版

8-BIT USB MCU FOR MONITORS WITH UP TO 60K ROM, 2K RAM, ADC, ...

STMICROELECTRON...

ST7277
ST7282

英文版

ROM FROM EPROM

ST7282
ST72101

英文版

8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WD...

ST72101
ST72101

英文版

8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WD...

STMICROELECTRON...

ST72101
ST72121

英文版

8-BIT MICROCONTROLLER (MCU) WITH 8 TO 16 K ROM/OTP/EPROM. 38...

ETC

ST72121

ST7232AK1B1 Datasheet

PDF预览

ST7232AK1B1相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

ST7232AK1B1 Datasheet

PDF预览

ST7232AK1B1相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

建议反馈

PDF纠错X