- 您现在的位置：买卖IC网 > PDF目录98144 > ST72121J4T1/XXX (STMICROELECTRONICS) 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44 PDF资料下载
参数资料
| 型号： | ST72121J4T1/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | PLASTIC, TQFP-44 |
| 文件页数： | 38/87页 |
| 文件大小： | 1365K |
| 代理商： | ST72121J4T1/XXX |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页当前第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页
43/87
ST72121
16-BIT TIMER (Cont’d)
STATUS REGISTER (SR)
Read Only
Reset Value: 0000 0000 (00h)
The three least significant bits are not used.
Bit 7 =
ICF1
Input Capture Flag 1.
0: No input capture (reset value).
1: An input capture has occurred or the counter
has reached the OC2R value in PWM mode. To
clear this bit, first read the SR register, then read
or write the low byte of the IC1R (IC1LR) regis-
ter.
Bit 6 =
OCF1
Output Compare Flag 1.
0: No match (reset value).
1: The content of the free running counter has
matched the content of the OC1R register. To
clear this bit, first read the SR register, then read
or write the low byte of the OC1R (OC1LR) reg-
ister.
Bit 5 =
TOF
Timer Overflow.
0: No timer overflow (reset value).
1: The free running counter rolled over from FFFFh
to 0000h. To clear this bit, first read the SR reg-
ister, then read or write the low byte of the CR
(CLR) register.
Note: Reading or writing the ACLR register does
not clear TOF.
Bit 4 =
ICF2
Input Capture Flag 2.
0: No input capture (reset value).
1: An input capture has occurred.To clear this bit,
first read the SR register, then read or write the
low byte of the IC2R (IC2LR) register.
Bit 3 =
OCF2
Output Compare Flag 2.
0: No match (reset value).
1: The content of the free running counter has
matched the content of the OC2R register. To
clear this bit, first read the SR register, then read
or write the low byte of the OC2R (OC2LR) reg-
ister.
Bit 2-0 = Reserved, forced by hardware to 0.
INPUT CAPTURE 1 HIGH REGISTER (IC1HR)
Read Only
Reset Value: Undefined
This is an 8-bit read only register that contains the
high part of the counter value (transferred by the
input capture 1 event).
INPUT CAPTURE 1 LOW REGISTER (IC1LR)
Read Only
Reset Value: Undefined
This is an 8-bit read only register that contains the
low part of the counter value (transferred by the in-
put capture 1 event).
OUTPUT
COMPARE
1
HIGH
REGISTER
(OC1HR)
Read/Write
Reset Value: 1000 0000 (80h)
This is an 8-bit register that contains the high part
of the value to be compared to the CHR register.
OUTPUT
COMPARE
1
LOW
REGISTER
(OC1LR)
Read/Write
Reset Value: 0000 0000 (00h)
This is an 8-bit register that contains the low part of
the value to be compared to the CLR register.
70
ICF1
OCF1
TOF
ICF2
OCF2
0
70
MSB
LSB
70
MSB
LSB
70
MSB
LSB
70
MSB
LSB
43
相关PDF资料 |
PDF描述 |
|---|---|
| ST72121J2T3/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44 |
| ST72121J2T6/XXX | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44 |
| ST72141K2B3/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| ST72311N4T6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64 |
| ST72311J2B6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST72124J | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2B | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2B1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2B1/XXX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
发布紧急采购，3分钟左右您将得到回复。