WIZ140SR/WIZ145SR Datasheet

10

Table 3. J2 Connector Pin Descriptions

Pins

Signal

I/O

Description

1

SW_INPUT

I

SW3 Switch Input

2

HW_TRIGGER

I

Serial Command Hardware Trigger

3

UART0_TX

O

RS-232 Data Output for Debugging Port

4

UART0_RX

I

RS-232 Data Input for Debugging Port

5

BOOT

I

Boot Selection Signal

Low: Application Boot, High: MCU boot loader

6

TPTX-

O

Ethernet Differential Output - (WIZ140SR Only)

7

TPTX+

O

Ethernet Differential Output + (WIZ140SR Only)

8

PWFBOUT

S

Power Feedback Out

9

GND

S

Ground

10

TPRX-

I

Ethernet Differential Input – (WIZ140SR Only)

11

TPRX+

I

Ethernet Differential Input + (WIZ140SR Only)

12

GND

S

Ground

13

/LINK_LED

O

Link LED (WIZ140SR Only)

14

/ACT_LED

O

Active LED (WIZ140SR Only)

1. I=input, O = output, S = supply.

2. J2 Pin6,7,10,11,13,14 use only WIZ140SR. WIZ145SR has RJ-45 Connector on the

module.

2.2.2 RJ-45 Connector

Figure 8. RJ-45 Connector

Pins

Signals

1

TX+

2

TX-

3

RX+

6

RX-