STA680 datasheet(9/48 Pages) STMICROELECTRONICS

9 / 48 page

DS5877 Rev 13

9/48

STA680

Block diagram and pin description

1.2.3

Ball-out list

The Table 2 describes the primary function and behavior of the STA680 pins.

Table 2. Ball-out description

LFBGA

Ball #

TFBGA

Ball #

Signal name

Type

Pull-up

/down(1)

Electrical

Supply

group

Description

Test

A13

C13

TESTMODE

Pull-down

3.3 V

Generic

supply

Factory test mode enable

Standard 1149.1 JTAG interface

B14

TRST_N

Pull-up

3.3 V

Generic

supply

JTAG active-low test reset

C12

TCK

Pull-down

3.3 V

Generic

supply

JTAG test clock

D12

TMS

Pull-up

3.3 V

Generic

supply

JTAG test mode state

C11

TDI

Pull-up

3.3 V

Generic

supply

JTAG test data in

D11

TDO

3.3 V

Generic

supply

JTAG test data out

GPIO & UART interfaces

A11

A12

RTS_GPIO0

I/O

Pull-up

3.3 V

Generic

supply

UART ready to send / GPIO

bit 0

B11

C11

CTS_GPIO1

I/O

Pull-up

3.3 V

Generic

supply

UART clear to send / GPIO

bit 1

A10

A11

TXD_GPIO2

I/O

Pull-up

3.3 V

Generic

supply

UART transmit data / GPIO

bit 2

B10

B11

RXD_GPIO3

I/O

Pull-up

3.3 V

Generic

supply

UART receive data / GPIO

bit 3

D10

M15

GPIO4

I/O

Pull-up

3.3 V

Generic

supply

GPIO bit 4

M14

GPIO5

I/O

Pull-up

3.3 V

Generic

supply

GPIO bit 5

N16

GPIO6

I/O

Pull-up

3.3 V

Generic

supply

GPIO bit 6

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