ST10F271 datasheet(13/173 Pages) STMICROELECTRONICS

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ST10F271

Pin data

13/173

Table 1.

Pin description

Symbol

Type

Function

P6.0 - P6.7

1 - 8

I/O

8-bit bidirectional I/O port, bit-wise programmable for input or output via direction

bit. Programming an I/O pin as input forces the corresponding output driver to

high impedance state. Port 6 outputs can be configured as push-pull or open

drain drivers. The input threshold of Port 6 is selectable (TTL or CMOS). The

following Port 6 pins have alternate functions:

P6.0

CS0

Chip select 0 output

...

P6.4

CS4

Chip select 4 output

IP6.5

HOLD

External master hold request input

I/O

SCLK1

SSC1: master clock output / slave clock input

P6.6

HLDA

Hold acknowledge output

I/O

MTSR1

SSC1: master-transmitter / slave-receiver O/I

OP6.7

BREQ

Bus request output

I/O

MRST1

SSC1: master-receiver / slave-transmitter I/O

P8.0 - P8.7

9-16

I/O

8-bit bidirectional I/O port, bit-wise programmable for input or output via direction

bit. Programming an I/O pin as input forces the corresponding output driver to

high impedance state. Port 8 outputs can be configured as push-pull or open

drain drivers. The input threshold of Port 8 is selectable (TTL or CMOS).

The following Port 8 pins have alternate functions:

I/O

P8.0

CC16IO

CAPCOM2: CC16 capture input / compare output

XPWM0

PWM1: channel 0 output

...

I/O

P8.3

CC19IO

CAPCOM2: CC19 capture input / compare output

XPWM0

PWM1: channel 3 output

I/O

P8.4

CC20IO

CAPCOM2: CC20 capture input / compare output

I/O

P8.5

CC21IO

CAPCOM2: CC21 capture input / compare output

I/O

P8.6

CC22IO

CAPCOM2: CC22 capture input / compare output

I/O

RxD1

ASC1: Data input (Asynchronous) or I/O (Synchronous)

I/O

P8.7

CC23IO

CAPCOM2: CC23 capture input / compare output

TxD1

ASC1: Clock / Data output

(Asynchronous/Synchronous)

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