Reset Description Mux Control | Texas Instruments TMS320DM355

TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

Table 2-23. DM355 Pin Descriptions (continued)

Name	BGA	Type	Group
	ID	(1)
	ID
FIELD / GIO070	H4	I/O	VENC
/ R2 / PWM3C			/ GIO /
			VENC
			/
			PWM3

EXTCLK /	G3 I/O VENC
GIO069 / B2 /	/ GIO /
PWM3D	VENC
	/
	PWM3

VCLK / GIO068	H3	I/O	VENC
			/ GIO
VREF	J7	A I/O	Video
			DAC
IOUT	E1	A I/O	Video
			DAC
IBIAS	F2	A I/O	Video
			DAC
VFB	G1	A I/O	Video
			DAC
TVOUT	F1	A I/O	Video
			DAC
VDDA18V_DAC	L7	PWR	Video
			DAC
VSSA_DAC	L8	GND	Video
			DAC
DDR_CLK	W9	I/O	DDR
DDR_CLK	W8	I/O	DDR
DDR_RAS	T6	I/O	DDR
DDR_CAS	V9	I/O	DDR
DDR_WE	W10	I/O	DDR
DDR_CS	T8	I/O	DDR
DDR_CKE	V10	I/O	DDR
DDR_DQM[1]	U15	I/O	DDR
DDR_DQM[0]	T12	I/O	DDR
DDR_DQS[1]	V15	I/O	DDR

Power

Supply (2)

VDD_VOUT

VDDA18_DAC

VDD_DDR

PU	Reset	Description (4)	Mux Control
PD (3)	State
	in	Video Encoder: Field identifier for interlaced	PINMUX1[19:18].FI
		display formats	ELD
		GIO: GIO[070]
		Digital Video Out: R2
		PWM3C(4)
PD	in	Video Encoder: External clock input, used if	PINMUX1[21:20].EX
		clock rates > 27 MHz are needed, e.g. 74.25	TCLK
		MHz for HDTV digital output
		GIO: GIO[069]
		Digital Video Out: B2
		PWM3D(4)
	out L	Video Encoder: Video Output Clock	PINMUX1[22].VCLK
		GIO: GIO[068](4)
		Video DAC: Reference voltage output
		(0.45V, 0.1uF to GND)
		Video DAC: Pre video buffer DAC output
		(1000 ohm to VFB)
		Video DAC: External resistor (2550 Ohms to
		GND) connection for current bias
		configuration
		Video DAC: Pre video buffer DAC output
		(1000 ohm to IOUT, 1070 ohm to TVOUT)
		Video DAC: Analog Composite NTSC/PAL
		output (SeeFigure 5-31andFigure 5-32for
		circuit connection)
		Video DAC: Analog 1.8V power
		Video DAC: Analog 1.8V ground
	out L	DDR Data Clock
	out H	DDR Complementary Data Clock
	out H	DDR Row Address Strobe
	out H	DDR Column Address Strobe
	out H	DDR Write Enable (active low)
	out H	DDR Chip Select (active low)
	out L	DDR Clock Enable
	out L	Data mask outputs: DQM0: For
		DDR_DQ[7:0]
	out L	Data mask outputs: DQM1: For
		DDR_DQ[15:8]
	in	Data strobe input/outputs for each byte of
		the 16 bit data bus used to synchronize the
		data transfers. Output to DDR when writing
		and inputs when reading.
		DQS1: For DDR_DQ[15:8]

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Device Overview

TMS320DM355 specifications

The Texas Instruments TMS320DM355 is a versatile digital signal processor designed to support a wide array of multimedia applications, specifically in the realms of digital video and audio processing. As part of the TMS320 family of digital signal processors, the DM355 brings a blend of computational power, energy efficiency, and integrated features that make it highly effective for tasks such as video encoding, decoding, and general signal processing.

One of the standout features of the DM355 is its advanced DaVinci architecture, which is specifically optimized for multimedia tasks. This architecture integrates both DSP and application processing functionalities. The dual-core architecture includes a high-performance DSP core that specializes in real-time signal processing alongside an ARM926EJ-S RISC microprocessor, facilitating the execution of complex algorithms and control tasks.

The DM355 offers robust multimedia processing capabilities with support for several video formats, including MPEG-2, MPEG-4, H.264, and JPEG. This enables developers to create powerful video applications for a variety of devices, from industrial systems to consumer electronics. Its processing capabilities extend to audio processing, allowing it to efficiently handle audio codecs and enhance audio quality in applications ranging from IP cameras to set-top boxes.

In terms of connectivity, the TMS320DM355 supports various interfaces including USB 2.0, Ethernet, and various serial interfaces like UART, SPI, and I2C. This wide range of connectivity options ensures that the DM355 can easily interface with different peripherals and network components, making it a suitable choice for networked applications.

Energy efficiency is another significant advantage of the DM355. With a focus on low power consumption, the device is designed to operate effectively in battery-powered and heat-sensitive environments. Its low thermal design power allows for extended operational life and reduced thermal management requirements, making it ideal for portable devices.

Furthermore, the DM355 is supported by a comprehensive software development framework, including the TI Code Composer Studio and a range of middleware tools, which streamline application development and speed up time to market. Its rich ecosystem enhances its usability across different applications, ensuring that developers can leverage the full potential of the hardware.

In summary, the Texas Instruments TMS320DM355 stands out as a powerful yet cost-effective DSP solution, combining advanced multimedia processing capabilities, robust connectivity options, and energy efficiency. Its unique architecture and extensive support resources make it a preferred choice for developers seeking to create innovative multimedia solutions.

Texas Instruments TMS320DM355 warranty Reset Description Mux Control

Models: TMS320DM355

TMS320DM355

Table 2-23. DM355 Pin Descriptions (continued)

BGA

PWM3

PWR

GND

Reset

Description (4)

Mux Control

ELD

TCLK

PINMUX1[22].VCLK

output (SeeFigure 5-31andFigure 5-32for

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TMS320DM355 specifications