stm8af6166t STMicroelectronics, stm8af6166t Datasheet - Page 50

• Manufacturer Part Number: stm8af6166t
• Description: Automotive 8-bit Mcu, With Up To 128 Kbytes Flash, Eeprom, 10-bit Adc, Timers, Lin, Can, Usart, Spi, I2c, 3 V To 5.5 V
• Manufacturer: STMicroelectronics

Option bytes
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Table 13.
Option byte no.
OPT3
OPT4
OPT5
OPT6
OPT7
Option byte description (continued)
LSI_EN: Low speed internal clock enable
IWDG_HW: Independent watchdog
WWDG_HW: Window watchdog activation
WWDG_HALT: Window watchdog reset on halt
EXTCLK: External clock selection
CKAWUSEL: Auto wake-up unit/Independent watchdog clock
PRSC[1:0] AWU/IWDG clock prescaler
HSECNT[7:0]: HSE crystal oscillator stabilization time
Reserved
WAITSTATE Wait state configuration
0: LSI clock is not available as CPU clock source
1: LSI clock is available as CPU clock source
0: IWDG Independent watchdog activated by software
1: IWDG Independent watchdog activated by hardware
0: WWDG window watchdog activated by software
1: WWDG window watchdog activated by hardware
0: No reset generated on halt if WWDG active
1: Reset generated on halt if WWDG active
0: External crystal connected to OSCIN/OSCOUT
1: External clock signal on OSCIN
0: LSI clock source selected for AWU and IWDG
1: HSE clock with prescaler selected as clock source for for AWU and
IWDG
00: 24 MHz to 128 kHz prescaler
01: 16 MHz to 128 kHz prescaler
10: 8 MHz to 128 kHz prescaler
11: 4 MHz to 128 kHz prescaler
This configures the stabilisation time to 0, 16, 256, 4096 HSE cycles.
This option configures the number of wait states inserted when reading
from the Flash/data EEPROM memory.
0: No wait states
1: 1 wait states
Description
STM8AF61xx, STM8AF51xx