参数资料
型号: TMDSEVM355
厂商: Texas Instruments
文件页数: 21/88页
文件大小: 0K
描述: TMDSEVM355
设计资源: DM355 EVM Schematics
标准包装: 1
系列: DaVinci™
类型: MCU
适用于相关产品: TMS320DM355
所含物品: 板,电池,线缆,CD,电源,遥控
相关产品: 296-32766-ND - IC DSP W/FLASH 16KX16 100-LQFP
296-18337-ND - IC DSP W/FLASH 64KX16 100-BGA
296-18336-ND - IC DSP W/FLASH 64KX16 100-BGA
296-18335-ND - IC DSP W/FLASH 64KX16 100-LQFP
296-18334-ND - IC DSP W/FLASH 64KX16 100-LQFP
296-18333-ND - IC DSP W/FLASH 64KX16 100-BGA
296-18332-ND - IC DSP W/FLASH 64KX16 100-BGA
Spectrum Digital, Inc
2.3 Ethernet Interface
The DM355 EVM incorporates an ethernet controller chip. This interface is connected
to the DM355’s EMIF. The EVM uses an Intel DAVICOM DM9000A. The 10/100 Mbit
interface is isolated and brought out to a RJ-45 standard ethernet connector, P5. The
ethernet address is stored in the ethernet controller ’s SPI ROM during manufacturing.
The RJ-45 has 2 LEDs integrated into its connector. The LEDs are green and yellow
and indicate the status of the ethernet link. The green LED, when on, indicates link and
when blinking indicates link activity. The yellow LED, when illuminated, indicates full
duplex mode.
2.4 I 2 C Interface
The I 2 C bus on the DM355 is ideal for interfacing to the control registers of many
devices. On the DM355 EVM the I 2 C bus is used to configure the video decoder,
stereo Codec, I/O expanders, and communicate with the MSP430. An I 2 C ROM is also
interfaced via the serial bus. The format of the bus is shown in the figure below.
Start Slave Address W
ACK Sub Address ACK-S Data ACK-S Stop
Write Sequence
Start Slave Address R
Data
STOP
Read Sequence
Figure 2-4, I 2 C Bus Format
The addresses of the on board peripherals are shown in the table below.
Table 1: I 2 C Memory Map
Device
TVP5146
TLV320AIC33
MSP430
Address
0x5D
0x1B
0x25
R/W
R/W
R/W
R/W
Function
Capture 1 Decoder
CODEC
LEDs, IR, RTC, User I/O
2-5
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