Support Information

Table 3-18. Extension Connector PE2 Signal Description (continued)

Pin(s)

Signal

Description

 

 

 

B15

UART2_RXD

UART2 RECEIVED DATA — Serial input signal

 

 

 

B16

UART2_TXD

UART2 TRANSMITTED DATA — Serial output signal

 

 

 

C1

GND

GROUND

 

 

 

C2

CSPI1_MOSI

MASTER OUT / SLAVE IN — CSPI data signal (bidirectional)

 

 

 

C3

CSPI1_MISO

MASTER IN / SLAVE OUT — CSPI data signal (bidirectional)

 

 

 

C4

CSPI1_SCLK

SERIAL CLOCK — Bidirectional

 

 

 

C5

CSPI1_SS0

SLAVE SELECT 0 — CSPI signal (bidirectional)

 

 

 

C6

CSPI1_SS1

SLAVE SELECT 1 — CSPI signal (bidirectional)

 

 

 

C7

CSPI1_SS2

SLAVE SELECT 2 — CSPI signal (bidirectional)

 

 

 

C8

CSPI1_RDY

READY — CSPI serial burst trigger, active low input

 

 

 

C9

SSI1_CLK

SYCHRONOUS SERIAL INTERFACE TRANSMITTER CLOCK — Bidirectional, output in

master mode and input in slave mode

 

 

 

 

 

C10

SSI1_TXD

SYCHRONOUS SERIAL INTERFACE TRANSMITTED DATA — Serial output signal

 

 

 

C11

SSI1_RXD

SYCHRONOUS SERIAL INTERFACE RECEIVED DATA — Serial input signal

 

 

 

C12

SSI1_FS

SYCHRONOUS SERIAL INTERFACE FRAME SYNC

 

 

 

C13

SAP_CLK

SYCHRONOUS AUDIO PORT CLOCK — Serial transmit clock, bidirectional, output in

master mode, input in slave mode

 

 

 

 

 

C14

SAP_TXD

SYCHRONOUS AUDIO PORT TRANMITTED DATA — Serial data output

 

 

 

C15

B_NEXUSEVTI

BUFFERED NEXUS EVENT IN

 

 

 

C16

VCC

+ 3 VDC power

 

 

 

 

M9328MX21ADSE User’s Manual, Rev. A

Freescale Semiconductor

3-31

Page 59
Image 59
Freescale Semiconductor M9328MX21ADSE user manual GND Ground CSPI1MOSI, SSI1FS Sychronous Serial Interface Frame Sync