OM5730 Ver la hoja de datos (PDF) - Philips Electronics

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OM5730

STB5860 (Set-Top Box) STB concept

Philips Electronics 

Philips Semiconductors

STB5860 (Set-Top Box) STB concept

Preliminary specification

OM5730

Pin 16 control as per SCART specification for RGB fast

blanking (in this case used to switch between RGB and

composite).

4.5 Memory

4.5.1 NON-VOLATILE MEMORY (NVM)

A 32-kbyte NVM is implemented with an EEPROM

connected to the I2C-bus to allow for channel data storage,

etc.

4.5.2 DRAM

2 Mbytes (1M × 16); 60 ns fast or hyper-page mode.

4.5.3 BOOT ROM

256 kbytes (256 kbytes × 8) to allow for ROM boot up and

also to provide ROM emulation.

4.5.4 FLASH

2 Mbytes [2 × (512K × 16)]; this can be is upgraded to

4 Mbytes [2 × (1M × 16)].

Two flash banks are needed to allow code to be run from

one bank while writing to the other.

4.5.5 VIDEO AND GRAPHICS RAM

4 Mbytes SDRAM [2 × (1M × 16)] at 81 MHz.

4.5.6 MEMORY OPTIONS

Surface mount links can select memory configuration.

Remark: the boot CS is selectable between boot ROM and

flash.

4.6 Connectors

Table 3 The main board connectors

CONNECTOR

Optical SPDIF

SPDIF

SCART

3 phonos (RCAs)

SVHS

CCIR 656 connector

JTAG

DEBUG socket

RS232

IEEE 1394

IEEE 1294

DESCRIPTION

a SPDIF signal from the SAA7215 is brought out via an optical output connector

to allow connection of the Philips SAA2505 AC3/MPEG7.1 surround sound

1 standard SCART, audio/video output signals only

CVBS, right audio and left audio

the Y/C output from the SAA7215 is brought out to a standard SVHS connector

a connector to the CCIR 656 YUV output from the SAA7215

a standard JTAG connector for boundary scan testing

two 64 pins DIN connectors form the debug socket allowing connection to a ROM emulator via

a debug interface board (not included)

an additional RS232-C (±12 V) interface to provide a board connector for debug use; one half

of a suitable RS232 driver chip will be used for signal level conversion

the Philips PDI1394L11 and PDI1394P11 is implemented to provide half-duplex 1394 access

from the SAA7219; under isolation mode the power for the physical IC will be taken from the

bus via the switching regulator; the option between isolated and non-isolated is selectable via

option links; two 1394 connectors are available on the back panel

subject to Electro-Static Discharge (ESD), standard logic are implemented as buffers to

provide 1284 to a 25-way D-type female connector on the back panel

1999 Aug 25

11

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