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參數(shù)資料
| 型號： | PR31700 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-bit RISC Microprocessor(32位 RISC微處理器) |
| 中文描述： | 32-BIT, 75 MHz, RISC PROCESSOR, PQFP208 |
| 封裝： | PLASTIC, LQFP-208 |
| 文件頁數(shù)： | 22/36頁 |
| 文件大?。?/td> | 378K |
| 代理商： | PR31700 |
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Philips Semiconductors
Preliminary specification
PR31700
32-bit RISC microprocessor
1998 May 13
22
POWER MODULE
The PR31700 has a Power Module with the following features.
power-down modes for individual internal peripheral modules
serial (SPI port) power supply control interface supported
power management state machine has 3 states: RUNNING,
DOZING and SLEEP
SERIAL INTERCONNECT BUS (SIB) MODULE
The PR31700 has a SIB Module with the following features.
The PR31700 contains holding and shift registers to support
the serial interface to the UCB1200 ASIC and/or other
optional codec devices
synchronous, frame-based protocol
The PR31700 always master source of clock and frame
frequency and phase; programmable clock frequency
each SIB frame consists of 128 clock cycles, further divided
into 2 subframes or words of 64 bits each (supports up to 2
devices simultaneously)
independent DMA support for audio receive and transmit,
telecom receive and transmit
supports 8-bit or 16-bit mono telecom formats
supports 8-bit or 16-bit mono or stereo audio formats
independently programmable audio and telecom sample rates
CPU read/write registers for subframe control and status
SERIAL PERIPHERAL INTERFACE (SPI) MODULE
The PR31700 has an SPI Module with the following features.
provides interface to SPI peripherals and devices
full-duplex, synchronous serial data transfers (data in, data
out, and clock signals)
The PR31700 supplies dedicated chip select and interrupt for
an SPI interface serial power supply
8-bit or 16-bit data word lengths for the SPI interface
programmable SPI baud rate
TIMER MODULE
The PR31700 has a Timer Module with the following features.
Real Time Clock (RTC) and Timer
40-bit counter (30.517 s granularity);
maximum uninterrupted time = 388.36 days
40-bit alarm register (30.517 s granularity)
16-bit periodic timer (0.868 s granularity);
maximum timeout = 56.8 ms
interrupts on alarm, timer, and prior to RTC roll-over
UART MODULE
The PR31700 has a UART Module with the following features.
2 independent full-duplex UARTs
programmable baud rate generator
UART A port used for serial control interface to external IR
module
UART B port used for general purpose serial control interface
UART A and UART B DMA support for receive and transmit
VIDEO MODULE
The PR31700 has a Video Module with the following features.
bit-mapped graphics
supports monochrome, grey scale, or color modes
time-based dithering algorithm for gray scale and color
modes
supports multiple screen sizes
supports split and non-split displays
variable size and relocatable video buffer
DMA support for fetching image data from video buffer
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