ST7LIT10BF1 STMicroelectronics, ST7LIT10BF1 Datasheet - Page 70

• Manufacturer Part Number: ST7LIT10BF1
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LIT10BF1

• Up To 4 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• 128 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow

ST7LITE1xB
DUAL 12-BIT AUTORELOAD TIMER 4 (Cont’d)
11.2.3.7 Force Update
In order not to wait for the counter
load the value into active DCRx registers, a pro-
grammable counter
both counters, a separate bit is provided which
when set, make the counters start with the over-
flow value, i.e. FFFh. After overflow, the counters
start counting from their respective auto reload
register values.
These bits are FORCE1 and FORCE2 in the
ATCSR2 register. FORCE1 is used to force an
overflow on Counter 1 and, FORCE2 is used for
Counter 2. These bits are set by software and re-
Figure 50. Force Overflow Timing Diagram
70/159
1
FORCE2 FORCE1
FORCEx
CNTRx
f
CNTRx
x
ATCSR2 Register
overflow is provided. For
E03
E04
x
overflow to
FFF
ATRx
set by hardware after the respective counter over-
flow event has occurred.
This feature can be used at any time. All related
features such as PWM generation, Output Com-
pare, Input Capture, One-pulse (refer to
Dynamic DCR2/3 update in One Pulse
be used this way.
Mode) can
Figure 15.