STM8S903K3 STM8S903F3
Memory and register map
Reset
status
Address
Block
Port E
Register label
Register name
0x00 5018
0x00 5019
0x00 501A
0x00 501B
0x00 501C
0x00 501D
PE_CR2
PF_ODR
PF_IDR
PF_DDR
PF_CR1
PF_CR2
Port E control register 2
0x00
Port F data output latch register
Port F input pin value register
Port F data direction register
Port F control register 1
0x00
0xXX(1)
0x00
Port F
0x00
Port F control register 2
0x00
(1)Depends on the external circuitry.
6.2.2
General hardware register map
Table 8: General hardware register map
Address
Block
Register label
Register name
Reset
status
Reserved area (60 bytes)
0x00 501E to
0x00 5059
FLASH_CR1
FLASH_CR2
FLASH_NCR2
FLASH _FPR
FLASH _NFPR
Flash control register 1
0x00
0x00
0xFF
0x00
Flash
0x00 505A
0x00 505B
0x00 505C
0x00 505D
0x00 505E
0x00 505F
Flash control register 2
Flash complementary control register 2
Flash protection register
Flash complementary protection register 0xFF
FLASH _IAPSR Flash in-application programming status
register
0x00
Reserved area (2 bytes)
0x00 5060 to
0x00 5061
Flash
FLASH _PUKR
Flash program memory unprotection
register
0x00
0x00 5062
0x00 5063
Reserved area (1 byte)
DocID15590 Rev 8
29/116
STMICROELECTRONICS [ ST ]
