SPEAR-09-P022 datasheet(10/40 Pages) STMICROELECTRONICS

10 / 40 page

Pin description

SPEAR-09-P022

10/40

Pin description

2.1

Functional pin group

With reference to figure package schematic in Section 6, here follows the pin list, sorted by

their belonging IP. All supply and ground pins are classified as power signals and gathered

in the Table 3.

Table 2.

Pin description by functional group

Group

Signal name

Ball

Direction

Function

Pin type

ADC

AIN_0

W11

Input

ADC analog input

channel

Analog buffer

2.5 V tolerant

AIN_1

V11

AIN_2

V12

AIN_3

W12

AIN_4

W13

AIN_5

V13

AIN_6

V14

AIN_7

W14

ADC_VREFN

W15

ADC negative voltage

reference

ADC_VREFP

V15

ADC positive voltage

reference

DEBUG

TEST_0

E15

Input

Test configuration ports.

For functional mode

they have to be set to

zero.

TTL input buffer,

3.3 V tolerant, PD

TEST_1

E14

TEST_2

D14

TEST_3

D13

TEST_4

E13

TEST_5

D12

nTRST

D17

Input

Test reset input

TTL Schmitt trigger

input buffer,

3.3 V tolerant, PU

TDO

E17

Output

Test data output

TTL output buffer,

3.3 V capable,4 mA

TCK

E16

Input

Test clock

TTL Schmitt trigger

input buffer,

3.3 V tolerant, PU

TDI

D16

Input

Test data input

TMS

D15

Input

Test mode select

PL_GPIO_0

I/O

Programmable logic I/O

TTL BIDIR buffer,

3.3 V capable, 4mA

3.3 V tolerant, PU

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