参数资料
型号: ST7PL38F2MC/XXXE
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: 135/168页
文件大小: 2955K
代理商: ST7PL38F2MC/XXXE
Obsolete
Product(s)
- Obsolete
Product(s)
ST7L34, ST7L35, ST7L38, ST7L39
69/168
ON-CHIP PERIPHERALS (cont’d)
11.3 LITE TIMER 2 (LT2)
11.3.1 Introduction
The Lite Timer is used for general-purpose timing
functions. It is based on two free-running 8-bit up-
counters and an 8-bit input capture register.
11.3.2 Main Features
Realtime Clock (RTC)
– One 8-bit upcounter 1ms or 2ms timebase pe-
riod (@ 8 MHz fOSC)
– One 8-bit upcounter with autoreload and pro-
grammable timebase period from 4s to
1.024ms in 4s increments (@ 8 MHz fOSC)
– 2 Maskable timebase interrupts
Input Capture
– 8-bit input capture register (LTICR)
– Maskable interrupt with wakeup from Halt
Mode capability
Figure 46. Lite Timer 2 Block Diagram
LTCSR1
8-bit TIMEBASE
/2
8-bit
fLTIMER
8
LTIC
fOSC/32
TB1F
TB1IE
TB
ICF
ICIE
LTTB1 INTERRUPT REQUEST
LTIC INTERRUPT REQUEST
LTICR
INPUT CAPTURE
REGISTER
1
0
1 or 2 ms
Timebase
(@ 8 MHz
fOSC)
To 12-bit AT TImer
fLTIMER
LTCSR2
TB2F
0
TB2IE
0
LTTB2
8-bit TIMEBASE
0
8-bit AUTORELOAD
REGISTER
8
LTCNTR
LTARR
COUNTER 2
COUNTER 1
0
Interrupt request
1
相关PDF资料
PDF描述
ST7PL38F2UCXXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
ST7PL39F2MA/XXXE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
ST7L38F2UC/XXXE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, QCC20
ST7FL38F2UATRE 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20
ST7PL35F2MAXXXRE 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
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