STM8AF628ATCY STMicroelectronics, STM8AF628ATCY Datasheet - Page 51

• Manufacturer Part Number: STM8AF628ATCY
• Description: 8-bit Microcontrollers - MCU 8-Bit Automotive MCU EEPROM 128kb Flash
• Manufacturer: STMicroelectronics

Specifications of STM8AF628ATCY

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: STM8A
• Data Bus Width: 8 bit

STM8AF52/62xx, STM8AF51/61xx
9
Table 20.
Addr.
480A
0x00
4800
0x00
4801
0x00
4802
0x00
4803
0x00
4804
0x00
4805
0x00
4806
0x00
4807
0x00
4808
0x00
4809
0x00
Read-out
protection
(ROP)
code
(UBC)
Alternate
function
remapping
(AFR)
Watchdog
option
Clock
option
HSE clock
startup
User boot
Option
name
Option bytes
Option bytes contain configurations for device hardware features as well as the memory
protection of the device. They are stored in a dedicated block of the memory. Each option
byte has to be stored twice, for redundancy, in a regular form (OPTx) and a complemented
one (NOPTx), except for the ROP (read-out protection) option byte and option bytes 8 to 16.
Option bytes can be modified in ICP mode (via SWIM) by accessing the EEPROM address
shown in
Option bytes can also be modified ‘on the fly’ by the application in IAP mode, except the
ROP and UBC options that can only be changed in ICP mode (via SWIM).
Refer to the STM8 Flash programming manual (PM0047) and STM8 SWIM communication
protocol and debug module user manual (UM0470) for information on SWIM programming
procedures.
Option bytes
NOPT1
NOPT2 NAFR7 NAFR6 NAFR5 NAFR4 NAFR3 NAFR2
NOPT3
NOPT4
NOPT5
Option
OPT0
OPT1
OPT2
OPT3
OPT4
OPT5
byte
no.
Table 20: Option bytes
AFR7
7
AFR6
6
Reserved
Reserved
Reserved
Reserved
Doc ID 14395 Rev 9
AFR5
below.
5
AFR4
NHSECNT[7:0]
4
HSECNT[7:0]
Option bits
NUBC[7:0]
ROP[7:0]
UBC[7:0]
NLSI_
NEXT
AFR3
LSI_
EXT
CLK
CLK
EN
EN
3
NCKAW
G_HW
CKAW
IWDG
NIWD
AFR2
USEL
USEL
_HW
2
NPRSC1
NAFR1
G _HW
NWWD
PRSC1
G_HW
AFR1
WWD
1
NPRSC
WWDG
NWWG
PRSC0
NAFR0
_HALT
_HALT
AFR0
Option bytes
0
0
Factory
default
setting
0xFF
0xFF
0xFF
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
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