ST7LIT10BF1 STMicroelectronics, ST7LIT10BF1 Datasheet - Page 63

• 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

DUAL 12-BIT AUTORELOAD TIMER 4 (Cont’d)
11.2.3.4 Output Compare Mode
To use this function, load a 12-bit value in the
Preload DCRxH and DCRxL registers.
When the 12-bit upcounter CNTR1 reaches the
value stored in the Active DCRxH and DCRxL reg-
isters, the CMPFx bit in the PWMxCSR register is
set and an interrupt request is generated if the
CMPIE bit is set.
In single Timer mode the output compare function
is performed only on CNTR1. The difference be-
tween both the modes is that, in Single Timer
mode, CNTR1 can be compared with any of the
four DCR registers, and in Dual Timer mode,
Figure 42. Block Diagram of Output Compare Mode (single timer)
(ATCSR2)
(ATCSR)
TRAN1
OVF
DCRx
PRELOAD DUTY CYCLE REG0/1/2/3
CNTR1
ACTIVE DUTY CYCLE REGx
COUNTER 1
CMP
INTERRUPT
CNTR1 is compared with DCR0 or DCR1 and
CNTR2 is compared with DCR2 or DCR3.
Notes:
1. The output compare function is only available
for DCRx values other than 0 (reset value).
2. Duty cycle registers are buffered internally. The
CPU writes in Preload Duty Cycle Registers and
these values are transferred in Active Duty Cycle
Registers after an overflow event if the corre-
sponding transfer bit (TRANx bit) is set. Output
compare is done by comparing these active DCRx
values with the counters.
OUTPUT COMPARE CIRCUIT
REQUEST
CMPIE
CMPFx (PWMxCSR)
(ATCSR)
ST7LITE1xB
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