Freescale Semiconductor i.MX27 PDK 1.0 User Manual

Page 37

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Freescale Semiconductor

i.MX27 PDK 1.0 Hardware User's Guide, Rev. 1.0 5-5

Signal

Pin

Description

GND

A1, A4, A7, A15, A40, B3, B6, B9,
B20, B41, C1, C4, C8, C13, C19,
C23, C27, C31, C37, C44, C46,
C48, C50, D3, D6, D9, D49, E8,
E13, E21, E25, E29, E33, E37,
E41, E45, E47, E49, F2, F14, F50,
G6, H3, H6, H11, H15, H19, H23,
H27, H31, H35, H40, H46, J3,
J21, J25, K3, K14, K37

Signal Ground

LI_BATTERY

A2, A3

Li_battery interface

1V8

A5, A6

From MC13783 SW2B, for peripheral
devices use

LCD_BKLT_18MA_RETURN

A8

LCD backlight power return

LCD_BKLT_18MA_BOOST

A9

LCD backlight power

BKLT_5V_60MA_A

A10

5V, 60mA backlight drive Anode

BKLT_5V_60MA_K

A11

5V, 60mA backlight drive Negative

DEBUG_INT_B

A12

Debug board interrupt

MASTER_RESET_B

A13

i.MX27 reset signal, low active, from reset
button on Personality board or Debug board

OSC_32KHz

A14

32.768KHz frequency output

UART3_RX

A16

i.MX27 UART3 serial data receive

UART3_TX

A17

i.MX27 UART3 serial data transmit

UART3_CTS

A18

i.MX27 UART3 clear to send

UART3_RTS

A19

i.MX27 UART3 request to send

UART2_RX

A20

i.MX27 UART2 serial data receive

UART2_TX

A21

i.MX27 UART2 serial data transmit

UART2_CTS

A22

i.MX27 UART2 clear to send

UART2_RTS

A23

i.MX27 UART2 request to send

UART1_RX

A24

i.MX27 UART1 serial data receive

UART1_TX

A25

i.MX27 UART1 serial data transmit

UART1_CTS

A26

i.MX27 UART1 clear to send

UART1_RTS

A27

i.MX27 UART1 request to send

RFU

A28, B12, B13, B16, B17, B18,
B19, B21, B22, E2, E14, F3, F11,
F12, F13, F21, G7, G8, G9, G10,
G11, H7, H8, H9, J13, K22

Reserved for future use

VDD_LCDIO

A29

LCD IO power supply

LCD_SD_I

A30

Data in for Serial Display, used for GPIO

LCD_HSYNC

A31

LCD Line sync

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