TMS320DM355 datasheet(32/163 Pages) TI1

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TMS320DM355

SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010

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Table 2-14. ASP Terminal Functions (continued)

TERMINAL

TYPE(1)

OTHER(2) (3)

DESCRIPTION

NAME

NO.

ASP1_CL

D17

I/Z

VDD

ASP1: Master Clock

ASP1_CL

D19

I/O/Z

VDD

ASP1: Transmit Clock

ASP1_DR

C19

I/O/Z

VDD

ASP1: Receive Data

ASP1_DX

C18

I/O/Z

VDD

ASP1: Transmit Data

ASP1_FS

E17

I/O/Z

VDD

ASP1: Receive Frame Synch

ASP1_FS

E16

I/O/Z

VDD

ASP1: Transmit Frame Sync

2.12 UART Interface

The DM355 includes three UART ports. These ports are multiplexed with GIO and other signals.

Table 2-15. UART Terminal Functions

TERMINAL

TYPE(1)

OTHER(2) (3)

DESCRIPTION

NAME

NO.

UART0_RXD

U18

VDD

UART0: Receive data. Used for UART boot mode

UART0_TXD

T18

VDD

UART0: Transmit data. Used for UART boot mode

UART1_RXD/

UART1: Receive data.

R15

I/O/Z

VDD

GIO013

GIO: GIO013

UART1_TXD/

UART1: Transmit data.

R17

I/O/Z

VDD

GIO012

GIO: GIO012

MMCSD1_DA

MMCSD1: DATA2

TA2/

A16

I/O/Z

VDD

GIO: GIO021

GIO021/

UART2: CTS

UART2_CTS

MMCSD1_DA

MMCSD1: DATA3

TA3/

B16

I/O/Z

VDD

GIO: GIO022

GIO022/

UART2: RTS

UART2_RTS

MMCSD1_DA

MMCSD1: DATA1

TA1/

B15

I/O/Z

VDD

GIO: GIO020

GIO020/

UART2: RXD

UART2_RXD

MMCSD1_DA

MMCSD1: DATA0

TA0/

A18

I/O/Z

VDD

GIO: GIO019

GIO019/

UART2: TXD

UART2_TXD

(1)

I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.

(2)

Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.

(3)

PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 k

Ω resistor should be used.)

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