ST7FLITE29 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
ST7FLITE29
STMicroelectronics
'ST7FLITE29' PDF : 133 Pages View PDF
ST7LITE2
11.3 LITE TIMER 2 (LT2)
11.3.1 Introduction
The Lite Timer can be used for general-purpose
timing functions. It is based on two free-running 8-
bit upcounters, an 8-bit input capture register.
11.3.2 Main Features
■ Realtime Clock
– One 8-bit upcounter 1 ms or 2 ms timebase
period (@ 8 MHz fOSC)
Figure 40. Lite Timer 2 Block Diagram
fOSC/32
LTCNTR
8-bit TIMEBASE
COUNTER 2
LTCSR2
0
0
– One 8-bit upcounter with autoreload and pro-
grammable timebase period from 4µs to
1.024ms in 4µs increments (@ 8 MHz fOSC)
– 2 Maskable timebase interrupts
■ Input Capture
– 8-bit input capture register (LTICR)
– Maskable interrupt with wakeup from Halt
Mode capability
LTTB2
Interrupt request
0
0
0
0 TB2IE TB2F
8
LTARR
8-bit AUTORELOAD
REGISTER
fLTIMER To 12-bit AT TImer
LTIC
8-bit TIMEBASE
COUNTER 1
8
LTICR
8-bit
INPUT CAPTURE
REGISTER
/2
1
fLTIMER
0 Timebase
1 or 2 ms
(@ 8MHz
fOSC)
LTCSR1
ICIE ICF TB TB1IE TB1F
LTTB1 INTERRUPT REQUEST
LTIC INTERRUPT REQUEST
65/133
1
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