TMS320DM335 datasheet(30/156 Pages) TI

30 / 156 page

2.4.9

UART Interface

TMS320DM335

Digital Media System-on-Chip (DMSoC)

SPRS528 – JULY 2008

www.ti.com

Table 2-14. ASP Terminal Functions (continued)

TERMINAL

TYPE(1)

OTHER(2)(3)

DESCRIPTION

NAME

NO.

ASP0_CL

ASP0: Transmit Clock

KX /

F18

I/O/Z

VDD

GIO: GIO[029]

GIO029

ASP0_DR

ASP0: Receive DataF

E18

I/O/Z

VDD

GIO: GIO[027]

GIO027

ASP0_DX

ASP0: Transmit Data

H15

I/O/Z

VDD

GIO: GIO[030]

GIO030

ASP0_FS

ASP0: Receive Frame Synch

R /

F16

I/O/Z

VDD

GIO: GIO[025]

GIO025

ASP0_FS

X /

G17

I/O/Z

VDD

ASP0: Transmit Frame SynchGIO: GIO[028]

GIO028

ASP1_CL

D18

I/O/Z

VDD

ASP1: Receive Clock

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

The DM335 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

(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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