saa7240 NXP Semiconductors, saa7240 Datasheet - Page 3

• Manufacturer Part Number: saa7240
• Description: Mpeg-2 Transport Risc Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1
1.1
1.2
The SAA7240 supports the following external interfaces:
(1)
2001 Oct 22
Conditional access descrambling Digital Video
Broadcasting (DVB) compliant, MULTI2 compliant and
ICAM
Targeted to BSkyB 3.00 and Canal
web box 1.01 applications
Stream demultiplexing: Transport Stream (TS),
Packetized Elementary Stream (PES), Program Stream
(PS) and Proprietary data streams
Internal 32-bit MIPS RISC-based CPU, supporting
MIPS16 instruction set and running at 81 MHz
Low-power Sleep modes supported across the chip
Support for external co-processor
0.25 m technology
Power supply of 2.5 V for the core and 3.3 V for the
peripherals, to be TTL level compatible
Comprehensive driver software and development tool
support
Package: SQFP208.
Versatile transport stream input/output at 13.5 Mbytes/s
configurable in parallel or serial mode. Interfaces to
IEEE 1394 devices (such as Philips PDI 1394 chip-set)
in full-duplex mode and to external descramblers
through a Common Interface (CI) device. The following
interfaces are supported:
– 3 parallel TS input/output ports
– 2 parallel TS input/output ports and 3 serial TS ports
– 1 parallel TS input/output port and 5 serial TS ports
– 6 serial TS input/output ports.
A microcontroller extension bus, supporting:
– 16-bit and 32-bit data buses
– Up to 64 Mbytes addressing range
– Synchronous Dynamic RAM (SDRAM) interface
– Dynamic RAM interface
– Read Only Memory (ROM) interface
– Flash memory interface
– Interface to various peripherals
MPEG-2 Transport RISC processor
Integrated Conditional Access Module (
intellectual property of News Data System
Corporation.
FEATURES
General
External interfaces
(1)
compliant
+
basic box 3.02 and
ICAM
) is an
3
– Synchronous interface to communicate with the
– Large endian and small endian byte addressing
– A multi-master mode (master and slave modes).
2-channel Direct Memory Access (DMA) for fast block
move to/from any memory location
Up to 12 chip selects available, some can be configured
as general purpose ports
An IEEE 1284 interface (Centronics) with DMA engine
supporting master and slave modes. Usable as a
general purpose port
Two UART (RS232) data ports with DMA capabilities (at
187.5 kbit/s), including hardware flow control signals
RXD, TXD, RTS and CTS for modem support
A Synchronous Serial Interface (SSI) to connect an
off-chip modem analog front-end
An elementary UART with DMA capabilities, dedicated
to front panel devices for instance
Two dedicated smart card reader interfaces (ISO 7816
compatible) with DMA capabilities. One interface is
intended for the conditional access and is shared with
the Integrated Conditional Access Module (ICAM) when
ICAM is enabled; the second interface may be used for
pay-per-view
Two I
capabilities, supporting the standard (100 kbit/s) and
fast (400 kbit/s) I
32-bit general purpose port
Eight interrupt inputs
Parallel audio video interface to the MPEG AVGD
decoder SAA7215
One Pulse Width Modulated (PWM) output with 8-bit
resolution
An Extended JTAG (EJTAG) interface for board test
support.
integrated MPEG Audio Video Graphics Decoder
(AVGD) SAA7215 at 40.5 MHz
2
C-bus master/slave transceivers with DMA
2
C-bus modes
Product specification
SAA7240