参数资料
型号: ST72F623F2B1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP20
封装: 0.300 INCH, LEAD FREE, SHRINK, PLASTIC, DIP-20
文件页数: 90/139页
文件大小: 1264K
代理商: ST72F623F2B1
ST7262xxx
54/139
Doc ID 6996 Rev 5
TIMEBASE UNIT (Cont’d)
10.3.5 Low Power Modes
10.3.6 Interrupts
Note: The OVF interrupt event is connected to an
interrupt vector (see Interrupts chapter).
It generates an interrupt if the ITE bit is set in the
TBUCSR register and the I-bit in the CC register is
reset (RIM instruction).
10.3.7 Register Description
TBU COUNTER VALUE REGISTER (TBUCV)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7:0 = CV[7:0] Counter Value
This register contains the 8-bit counter value
which can be read and written anytime by soft-
ware. It is continuously incremented by hardware if
TCEN=1.
TBU CONTROL/STATUS REGISTER (TBUCSR)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7 = Reserved. Forced by hardware to 0.
Bit 6 = CAS Cascading Enable
This bit is set and cleared by software. It is used to
cascade the TBU and the PWM/ART timers.
0: Cascading disabled
1: Cascading enabled
Bit 5 = OVF Overflow Flag
This bit is set only by hardware, when the counter
value rolls over from FFh to 00h. It is cleared by
software reading the TBUCSR register. Writing to
this bit does not change the bit value.
0: No overflow
1: Counter overflow
Bit 4 = ITE Interrupt enabled.
This bit is set and cleared by software.
0: Overflow interrupt disabled
1: Overflow interrupt enabled. An interrupt request
is generated when OVF=1.
Bit 3 = TCEN TBU Enable.
This bit is set and cleared by software.
0: TBU counter is frozen and the prescaler is reset.
1: TBU counter and prescaler running.
Bit 2:0 = PR[2:0] Prescaler Selection
These bits are set and cleared by software to se-
lect the prescaling factor.
Mode
Description
WAIT
No effect on TBU
HALT
TBU halted.
Interrupt
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
Counter Over-
flow Event
OVF
ITE
Yes
No
70
CV7CV6
CV5CV4
CV3CV2
CV1
CV0
70
0
CAS OVF
ITE
TCEN
PR2
PR1
PR0
PR2 PR1
PR0
Prescaler Division Factor
000
2
001
4
010
8
011
16
100
32
101
64
110
128
111
256
相关PDF资料
PDF描述
ST72F621J4B1 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP42
ST72621K4B1 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
ST72P324BJ6TA/XXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
ST72P324BK6TA/XXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32
ST72F324BK2TCRS 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
相关代理商/技术参数
参数描述
ST72F623F2M1 功能描述:8位微控制器 -MCU Flash 8K No Interfce RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F623F2M1TR 功能描述:8位微控制器 -MCU LO SPD USB 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F63BD6U1 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F63BD6U1TR 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
ST72F63BE1M1 功能描述:8位微控制器 -MCU ST7263B Lo SPD USB 8B MCU FAMILY RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT