参数资料
型号: ST7PL35F2MCXXXRE
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOP-20
文件页数: 138/168页
文件大小: 2955K
代理商: ST7PL35F2MCXXXRE
Obsolete
Product(s)
- Obsolete
Product(s)
ST7L34, ST7L35, ST7L38, ST7L39
71/168
LITE TIMER 2 (LT2) (cont’d)
11.3.4 Low Power Modes
11.3.5 Interrupts
Note: The TBxF and ICF interrupt events are con-
nected to separate interrupt vectors (see Inter-
rupts chapter).
They generate an interrupt if the enable bit is set in
the LTCSR1 or LTCSR2 register and the interrupt
mask in the CC register is reset (RIM instruction).
11.3.6 Register Description
LITE TIMER CONTROL/STATUS REGISTER 2
(LTCSR2)
Read / Write
Reset Value: 0x00 0000 (x0h)
Bits 7:2 = Reserved. Must be kept cleared.
Bit 1 = TB2IE Timebase 2 Interrupt enable
This bit is set and cleared by software.
0: Timebase (TB2) interrupt disabled
1: Timebase (TB2) interrupt enabled
Bit 0 = TB2F Timebase 2 Interrupt Flag
This bit is set by hardware and cleared by software
reading the LTCSR2 register. Writing to this bit
has no effect.
0: No Counter 2 overflow
1: A Counter 2 overflow has occurred
LITE
TIMER
AUTORELOAD
REGISTER
(LTARR)
Read / Write
Reset Value: 0000 0000 (00h)
Bits 7:0 = AR[7:0] Counter 2 Reload Value
These bits register is read/write by software. The
LTARR value is automatically loaded into Counter
2 (LTCNTR) when an overflow occurs.
Mode
Description
SLOW
No effect on Lite timer
(this peripheral is driven directly by
fOSC/32)
WAIT
No effect on Lite timer
ACTIVE HALT
HALT
Lite timer stops counting
Interrupt
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Active
Halt
Exit
from
Halt
Timebase 1
Event
TB1F
TB1IE
Yes
No
Timebase 2
Event
TB2F
TB2IE
No
IC Event
ICF
ICIE
70
00
TB2IE
TB2F
70
AR7AR7
AR3AR2
AR1
AR0
1
相关PDF资料
PDF描述
ST7PL35F2UA/XXXE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
ST7L35F2UA/XXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
ST7L35F2UC/XXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
ST7L39F2MC/XXXE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
ST7L39F2UC/XXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
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