STM8S105S4(2015) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM8S105S4
(Rev.:2015)

Access line, 16 MHz STM8S 8-bit MCU, up to 32 Kbyte Flash, integrated EEPROM, 10-bit ADC, timers, UART, SPI, I²C

STMicroelectronics 

Memory and register map

STM8S105x4/6

Table 6. Flash, data EEPROM and RAM boundary address

Memory area

Size (byte)

Start address

End address

Flash program memory

32 K

16 K

0x00 8000

0x00 8000

0x00 FFFF

0x00 BFFF

RAM

2K

0x00 0000

0x00 07FF

Data EEPROM

1024

0x00 4000

0x00 43FF

6.2

Register map

6.2.1 I/O port hardware register map

Address

0x00 5000

0x00 5001

0x00 5002

0x00 5003

0x00 5004

0x00 5005

0x00 5006

0x00 5007

0x00 5008

0x00 5009

0x00 500A

0x00 500B

0x00 500C

0x00 500D

0x00 500E

0x00 500F

0x00 5010

0x00 5011

0x00 5012

0x00 5013

Block

Port A

Port B

Port C

Port D

Table 7. I/O port hardware register map

Register label

Register name

PA_ODR

Port A data output latch register

PA_IDR

Port A input pin value register

PA_DDR

Port A data direction register

PA_CR1

Port A control register 1

PA_CR2

Port A control register 2

PB_ODR

Port B data output latch register

PB_IDR

Port B input pin value register

PB_DDR

Port B data direction register

PB_CR1

Port B control register 1

PB_CR2

Port B control register 2

PC_ODR

Port C data output latch register

PB_IDR

Port C input pin value register

PC_DDR

Port C data direction register

PC_CR1

Port C control register 1

PC_CR2

Port C control register 2

PD_ODR

Port D data output latch register

PD_IDR

Port D input pin value register

PD_DDR

Port D data direction register

PD_CR1

Port D control register 1

PD_CR2

Port D control register 2

Reset status

0x00

0xXX(1)

0x00

0x00

0x00

0x00

0xXX(1)

0x00

0x00

0x00

0x00

0xXX(1)

0x00

0x00

0x00

0x00

0xXX(1)

0x00

0x02

0x00

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DocID14771 Rev 15

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