CXD1948R Просмотр технического описания (PDF) - Sony Semiconductor
Номер в каталоге
Компоненты Описание
Список матч
CXD1948R Datasheet PDF : 78 Pages
| |||
CXD1948R
5. Isochronous Communication
The CXD1948R has a function which transmits and receives DVB and DSS transport stream data as
isochronous packets.
The communication of transport stream data with the DVB and DSS systems is performed using a dedicated
I/O data bus and several control signal pins. (See below.)
Further, it supports a wide variety of application I/F, including 8-bit data and 16-bit data, synchronous and
asynchronous.
Name
AIDT
PACKETEN
ERRFLAG
AIWRITE
AIREAD
READREQ
AICK
Width
16
1
1
1
1
1
1
in/out
in/out
in/out
in/out
in
in
out
in
Description
Transport stream data bus
Indicates a valid packet (valid: 1; invalid: 0)
Indicates that the packet is an error (error: 1; no error: 0)
Data write strobe signal
Data read strobe signal
Packet read request signal
Clock for interface (during sync)
5-1. Built-in FIFO
The CXD1948R has a built-in dedicated FIFO for isochronous communication.
The FIFO capacity is 3840 bytes, and it can accumulate 20 packets worth of DVB transport stream.
In order to actually use the built-in FIFO, the bank structure must be set. This is performed by the CFR
PacketBanks register.
–9–
Share Link: 