STA680 datasheet(13/43 Pages) STMICROELECTRONICS

13 / 43 page

STA680

I/O description

13/43

3.3

Pin list

The Table 2 briefly describes the main function and characteristics of the STA680 I/O

signals in normal operation mode.

Table 2.

Pins description

Pin #

Ball #

Signal name

Type

Electrical

Supply

group

Description

Test

A13

TESTMODE

input

1.8 V or 3.3 V

Generic IO

Supply

Factory test mode

Standard 1149.1 JTAG interface

B14

TRST_N

input

1.8 V or 3.3 V

Generic IO

Supply

JTAG active-low test reset

C12

TCK

input

1.8 V or 3.3 V

Generic IO

Supply

JTAG test clock

D12

TMS

input

1.8 V or 3.3 V

Generic IO

Supply

JTAG test mode state

C11

TDI

input

1.8 V or 3.3 V

Generic IO

Supply

JTAG test data in

D11

TDO

input

1.8 V or 3.3 V

Generic IO

Supply

JTAG test data out

GPIO & UART interfaces

A11

RTS_GPIO0

in/out

1.8 V or 3.3 V

Generic IO

Supply

UART ready to send /GPIO bit 0

B11

CTS_GPIO1

in/out

1.8 V or 3.3 V

Generic IO

Supply

UART clear to send /GPIO bit 1

A10

TXD_GPIO2

in/out

1.8 V or 3.3 V

Generic IO

Supply

UART transmit data /GPIO bit 2

B10

RXD_GPIO3

in/out

1.8 V or 3.3 V

Generic IO

Supply

UART receive data /GPIO bit 3

Not

bonded

D10

GPIO4

in/out

1.8 V or 3.3 V

Generic IO

Supply

GPIO bit 4

Not

bonded

GPIO5

in/out

1.8 V or 3.3 V

Generic IO

Supply

GPIO bit 5

Not

bonded

GPIO6

in/out

1.8 V or 3.3 V

Generic IO

Supply

GPIO bit 6

Not

bonded

GPIO7

in/out

1.8 V or 3.3 V

Generic IO

Supply

GPIO bit 7

Reset

RESET_N

input

1.8 V or 3.3 V

Generic IO

Supply

Device active-low reset

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