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Flash program memory and data EEPROM RM0016 Figure 10. UBC area size definition on medium density STM8S and STM8A with up to 32 Kbytes of Flash program memory 0x00 8000 0x00 807F 0x00 8200 0x00 8400 0x00 8600 0x00 8800 Interrupt vector table 512 bytes 512 bytes 512 bytes Page 0 Page 1 Page 2 Page 3 UBC[7:0] =0x01 1 Kbytes UBC[7:0] =0x02 2 Kbytes UBC[7:0] =0x3E 32 Kbytes 1K to 32 Kbytes User boot code area 0x00 F800 0x00 FA00 0x00 FC00 0x00 FE00 0x00 FFFF 512 bytes 512 bytes 512 bytes 512 bytes Page 60 Page 61 Page 62 Page 63 1. N (number of protected pages) = UBC[7:0] + 2 for UBC[7:0] > 1. 2. UBC[7:0] =0x00 means no user boot code area is defined. Refer to the datasheets for the description of the UBC option byte. 3. The first 2 pages (1 Kbytes) contain the 128 bytes of interrupt vectors (32 IT vectors). 42/449 Doc ID 14587 Rev 8 www.BDTIC.com/ST
RM0016 Flash program memory and data EEPROM Figure 11. UBC area size definition on high density STM8S and STM8A with up to 128 Kbytes of Flash program memory 0x00 8000 0x00 807F 0x00 8200 0x00 8400 0x00 8600 0x00 8800 Interrupt vector table 512 bytes 512 bytes 512 bytes Page 0 Page 1 Page 2 Page 3 UBC[7:0] =0x01 1 Kbytes UBC[7:0] =0x02 2 Kbytes UBC[7:0] =0xFE 128 Kbytes 1K to 128 Kbytes User boot code area 0x02 7800 0x02 7A00 0x02 7C00 0x02 7E00 0x02 7FFF 512 bytes 512 bytes 512 bytes 512 bytes Page 252 Page 253 Page 254 Page 255 1. UBC[7:0] = 0x00 means no user boot code area is defined. Refer to the datasheets for the description of the UBC option byte. 2. The first 2 pages (1 Kbytes) contain the interrupt vectors, of which only 128 bytes (32 IT vectors) are used. 4.4.4 Data EEPROM (DATA) The data EEPROM area can be used to store application data. By default, the DATA area is write protected to prevent unintentional modification when the main program is updated in IAP mode. The write protection can be unlocked only by using a specific MASS key sequence (refer to Enabling write access to the DATA area). Refer to Section 4.4: Memory organization for the size of the DATA area. 4.4.5 Main program area The main program is the part of the Flash program memory which is used to store the application code (see Figure 6, Figure 7 and Figure 8). 4.4.6 Option bytes The option bytes are used to configure device hardware features and memory protection. They are located in a dedicated memory array of one block. The option bytes can be modified both in ICP/SWIM and in IAP mode, with OPT bit of the FLASH_CR2 register set to 1 and the NOPT bit of the FLASH_NCR2 register set to 0 (see Section 4.8.2: Flash control register 2 (FLASH_CR2) and Section 4.8.3: Flash complementary control register 2 (FLASH_NCR2)). Doc ID 14587 Rev 8 43/449 www.BDTIC.com/ST
Page 1 and 2: RM0016 Reference manual STM8S and S
Page 3 and 4: RM0016 Contents 4.5.3 Enabling writ
Page 5 and 6: RM0016 Contents 9.7 Clock-out capab
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RM0016 Clock control (CLK) 9.9.6 Cl
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RM0016 Clock control (CLK) 9.9.8 Pe
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RM0016 Clock control (CLK) 9.9.10 C
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RM0016 Clock control (CLK) 9.9.12 S
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RM0016 Power management 10 Power ma
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RM0016 Power management 10.2.1 Wait
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RM0016 General purpose I/O ports (G
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RM0016 Auto-wakeup (AWU) 12.3 AWU f
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RM0016 Auto-wakeup (AWU) Example 1
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RM0016 Auto-wakeup (AWU) 12.4.3 Tim
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RM0016 Beeper (BEEP) 13.2.2 Beeper
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RM0016 Independent watchdog (IWDG)
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RM0016 Independent watchdog (IWDG)
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RM0016 Window watchdog (WWDG) Figur
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RM0016 Window watchdog (WWDG) Figur
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RM0016 Window watchdog (WWDG) Bits
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RM0016 Timer overview 16.1 Timer fe
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RM0016 Timer overview Table 36. Exp
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RM0016 16-bit advanced control time
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RM0016 Revision history 25 Revision
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RM0016 Revision history Table 78. D
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RM0016 Index IWDG_KR . . . . . . .
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RM0016 Please Read Carefully: Infor
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