PNX1501E NXP Semiconductors, PNX1501E Datasheet - Page 751

• Manufacturer Part Number: PNX1501E
• Description: Digital Signal Processors & Controllers (DSP, DSC) MEDIA PROCESSOR PNX15XX/266MHZ
• Manufacturer: NXP Semiconductors

Specifications of PNX1501E

• Product: DSPs
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-795
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details
• Other names: PNX1501E,557

1. Introduction
The PNX15xx Series chip contains an I
peripherals including consumer electronic appliances, video image processing
equipment, and miniature cards. The IIC module supports bi-directional data transfer
between master and slave in slow and fast speeds as well as multiple master and
slave modes. Arbitration between simultaneously transmitting masters can be
maintained without corruption of serial data on the bus. Serial clock synchronization
allows devices with different bit rates to communicate via one serial bus, and it can be
used as a handshake mechanism to suspend and resume serial transfer. The IIC
hardware architecture and software protocol is simple and versatile.
The on-chip IIC module provides a serial interface that meets the I
specification and supports all transfer modes to and from the I
following functionality:
The I
controlling the bus can be connected to it. Because more than one master could try to
initiate a data transfer at the same time, a collision detection scheme is used to
arbitrate between the multiple masters. If two or more masters attempt to transfer
information onto the bus, the first to produce a ‘one’ when the other produces a ‘zero’
will detect the collision and back off transferring information.
The clock signals during arbitration are a synchronized combination of the clocks
generated by the masters using the wired-AND connection to the SCL line. Two
wires, SDA serial data) and SCL (serial clock), carry information between the devices
connected to the I
Each device can operate as either a transmitter or receiver, depending on the
function of the device. In addition to transmitters and receivers, devices can also be
considered as masters or slaves when performing data transfers. A master is the
device which initiates a data transfer on the bus and generates the clock signals to
permit that transfer. Any device addressed by a master is considered a slave.
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Chapter 25: I
PNX15xx Series Data Book – Volume 1 of 1
Rev. 2 — 1 December 2004
Both normal and fast modes up to 400 kHz.
32-bit word access from the CPU; no buffering is supported.
Generation of interrupts on I
Four modes of operation: master transmitter and receiver, slave transmitter and
receiver.
STO bit and the actual addresses of the Special Function Registers (SFRs).
2
C bus is a multi-master bus. This means that more than one device capable of
2
C bus.
2
2
C Interface
C state change
2
C module which interfaces with a variety of
2
Product data sheet
C bus. It supports the
2
C bus