Freescale Semiconductor user manual M9328MX21ADSE Application Development System

General Information

+5V IN		OFF			P3
P8		ON				EXT UART DCE
			SW1
				P9
				ETHERNET
	F1
	2A

BASE BOARD

P2

P1

P4

P7

U16 IrDA

UART4 DTE

UART1 DCE

USB OTG

DTR

NC

DSR

NC

CD

NC

RI

ACT

3

VR1

SD2_D0

SD2_D1

SD2_D2

SD2_D3

2

CON

1

BATT EM

J3

J4

J5

J6

LCD

CPU BOARD

PX1/PY1

SW2

RESET

5V PWR			LED1
VCC PWR			LED2
STAT2			LED3
STAT1			LED4
BUS ACT			LED7
	BUZZER
		P10
		LINE IN
		P11
		MIC IN

LED6 LED5

LINK ACT

S2

1 BOOT0

2 BOOT1

3 BOOT2

4 BOOT3

5 CLKMODE0

6 CLKMODE1

7 SW1 IRQ

8 SW2 READ

S1

1 UART1_ON

2 UART4_ON

3 IrDA_ON

4 NEXUS_EN

5 JTAG_CTRL

6 TONE_OUT

7 PEN_CS_B

8 PEN_IRQ_B

P20

MULTI-ICE

TV ENCODER

P13

PK1

CON

U6

U7

U5

CARD

PM1

CPU

U8

U9

P5

PM2

J3

J2

J1

PK2

FLASHNAND

CONKEYPAD

PX2/PY2

P6

P12		J7
HEADPHONE		ONE WIRE
	PE3
	EXP CON 2

PE2	PE1	SD/MMC
EXP CON 1	CSI

Figure 1-1. M9328MX21ADSE Application Development System

Important board components on the CPU card are:

•U5 — i.MX21 MCU

•PX1, PX2 — connections to the Base board (bottom side)

•PK1, PK2 — connections to option cards

•P20 — ARM Multi-ICE connector

•PM1 & PM2 — NAND Flash card connectors

•J1, J2, J3 — Power interruption jumpers for measuring CPU current consumption

Important board components on the Base board are:

•PY1, PY2 — connections to the CPU board

•P1 — RS-232 DB9 connector for the processor’s UART1, DCE pinout

•P2 — RS-232 DB9 connector for the processor’s UART4, DTE pinout

•P3 — RS-232 DB9 connector for the External UART, DCE pinout

•P4 — USB OTG connector

•P5 — Keypad module connector

•P6 — SD/MMC card connector

•P7 — LCD/touch panel connector

	M9328MX21ADSE User’s Manual, Rev. A
Freescale Semiconductor	1-3