JN5148-001M03T534 Datasheet, PDF(8/23 Page) NXP Semiconductors – JenNet, ZigBee PRO and IEEE802.15.4 Module

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JN5148-001M03T534 Datasheet, PDF (8/23 Pages) NXP Semiconductors – JenNet, ZigBee PRO and IEEE802.15.4 Module

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DIO17

CTS1

IP_SEL

DAI_SCK

DIO18

RTS1

IP_INT

DAI_SDOUT

DIO19

TXD1

DIO 20

RXD1

COMP1-

COMP1+

ADC1

ADC2

ADC3

*: These two pins are not connected for High power modules

JTAG_TCK

JTAG_TMS

JTAG_TDO

JTAG_TDI

CMOS

3.3V

DIO17, UART 1 Clear To Send

Input, Intelligent Peripheral Device

Select Input or Digital Audio Clock

or JTAG CLK

DIO18, UART 1 Request To Send

Output, Intelligent Peripheral

Interrupt Output or Digital Audio

Data Output or JTAG Mode Select

DIO19 or UART 1 Transmit Data

Output or JTAG Data Out

DIO 20, UART 1 Receive Data

Input or JTAG data In

Comparator 1 Input -ve

Comparator 1 Input +ve

Analogue to Digital Input

4.2. Pin Descriptions

All pins behave as described in the JN-DS-JN5148 Wireless Microcontroller Datasheet [2], with the exception of the

following:

4.2.1 Power Supplies

A single power supply pin, VDD is provided. Separate analogue (VSSA) and digital (GND) grounds are provided.

These should be connected together at the module pins.

4.2.2 SPI Memory Connections

SPISWP is a write protect pin for the serial flash memory. This should be held low to inhibit writes to the flash device.

SPISSZ is connected to SPI Slave Select 0 on the JN5148.

SPISSM is connected to the Slave Select pin on the memory.

This configuration allows the flash memory device to be programmed using an external SPI programmer if required.

For programming in this mode, the JN5148 should be held in reset by taking RESETN low. Two potential flash 4Mbit

memory devices may be used in the module, the Numonyx M25P40 and the SST SST25VF040B.

The memory can also be programmed over the UART by using the flash programmer software provided by Jennic.

This is available as part of the Software Developer kit and libraries available from www.nxp.com/jennic. To enter

this programming mode, SPIMISO (pin 7) should be held low whilst the chip is reset. Once programming has finished,

the chip should be reset, when it will execute the new code downloaded.

For normal operation of the module and programming over the UART, SPISSZ should be connected to

SPISSM.

JN-DS-JN5148-001-Myy 1v4

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