STM8S005C6 datasheet(25/97 Pages) STMICROELECTRONICS

25 / 97 page

DocID022186 Rev 4

25/97

STM8S005C6 STM8S005K6

Pinouts and pin descriptions

5.1

Alternate function remapping

As shown in the rightmost column of the pin description table, some alternate functions can

be remapped at different I/O ports by programming one of eight AFR (alternate function

remap) option bits. Refer to Section 8: Option bytes. When the remapping option is active,

the default alternate function is no longer available.

To use an alternate function, the corresponding peripheral must be enabled in the peripheral

registers.

Alternate function remapping does not effect GPIO capabilities of the I/O ports (see the

GPIO section of the family reference manual, RM0016).

PD0/TIM3_CH2

[TIM1_BKIN]

[CLK_CCO]

I/O X

HS O3

Port D0

Timer 3 -

channel 2

TIM1_BKIN

[AFR3]/

CLK_CCO

[AFR2]

PD1/SWIM(4)

I/O X

XHS O4

Port D1

SWIM data

interface

PD2/TIM3_CH1

[TIM2_CH3]

I/O X

HS O3

Port D2

Timer 3 -

channel 1

TIM2_CH3

[AFR1]

PD3/TIM2_CH2

[ADC_ETR]

I/O X

HS O3

Port D3

Timer 2 -

channel 2

ADC_ETR

[AFR0]

PD4/TIM2_CH1

[BEEP]

I/O X

HS O3

Port D4

Timer 2 -

channel 1

BEEP output

[AFR7]

PD5/ UART2_TX

I/O X

Port D5

UART2 data

transmit

PD6/ UART2_RX

I/O X

Port D6

UART2 data

receive

PD7/TLI

[TIM1_CH4]

I/O X

Port D7

Top level

interrupt

TIM1_CH4

[AFR4]

A pull-up is applied to PF4 during the reset phase. This pin is input floating after reset release.

AIN12 is not selectable in ADC scan mode or with analog watchdog.

In the open-drain output column, ‘T’ defines a true open-drain I/O (P-buffer, weak pull-up, and protection diode to

VDD are not implemented).

The PD1 pin is in input pull-up during the reset phase and after the internal reset release.

Table 5. STM8S005C6 and STM8S005K6 pin descriptions (continued)

Pin number

Pin name

Input

Output

Default

alternate

function

Alternate

function

after remap

[option bit]

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