- 您现在的位置：买卖IC网 > PDF目录166397 > B900M24FXX12IT 0-BIT, 59.88 MHz, OTHER DSP, PQCC44 PDF资料下载
参数资料
| 型号： | B900M24FXX12IT |
| 元件分类： | 数字信号处理 |
| 英文描述： | 0-BIT, 59.88 MHz, OTHER DSP, PQCC44 |
| 文件页数： | 12/100页 |
| 文件大小： | 1547K |
| 代理商： | B900M24FXX12IT |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页当前第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页
Lucent Technologies Inc.
19
Advance Data Sheet
B900
July 1999
Baseband Signal Processor
4 Hardware Architecture (continued)
4.1
B900 Architectural Overview (continued)
4.1.8 Synchronous Serial Interface Units (SSI)
One independent SSI unit is compatible with the SPI
interface of the
Motorola* 68HC11 microcontroller. All
the features of the 68HC11 SPI interface are supported
except the open collector mode of operation and slave-
initiated transfers, which are not supported. The B900
core can be interrupted upon completion of an SSI
data transfer. The SSI pins are multiplexed with IOPC,
under control of a programmable bit in the SSI. For
more information, see Section 4.6.
4.1.9 Clock Generation
The clock structure for the B900 incorporates a wide
range of options, including a crystal oscillator, a PLL, a
low-frequency divider, and an internal ring oscillator.
The B900 core receives a 2X B900 core clock (two
times MIPS rate) that is divided by two inside the core
to generate the DSP’s non-wait-stated and wait-stated
clocks.
It includes one low-power internal ring oscillator and a
crystal oscillator that connects to an external crystal.
The clkc register bits 7—3 (see Table 41 on page 53)
determine which clock is selected to run the core and
peripherals.
The B900 provides an output clock pin, DOUT. As
shown in Table 9, clkc register bits 8—11 select one of
the DOUT MUX pin output functions.
* Motorola is a registered trademark of Motorola, Inc.
4.1.10 Dual-Channel Serial I/O Port (SIO)
The SIO provides a serial interface to codecs or other
external devices.
See Section 4.10 for more information.
4.1.11 Bit Manipulation Unit (BMU)
The BMU extends the DSP1600 core instruction set to
provide more efficient bit operations on accumulators.
The BMU contains logic for barrel shifting, normaliza-
tion, and bit-field insertion/extraction. The unit also
contains a set of 36-bit alternate accumulators. The
data in the alternate accumulators can be shuffled with
the data in the main accumulators. Flags returned by
the BMU mesh seamlessly with the DSP1600 condi-
tional instructions.
Table 9. DOUT Pin Output Functions
clkc
Register
DOUT MUX[3:0] Pin Output Function
Bits 11—8
0000
Ring oscillator (CLKRING) selected to
DOUT
0001
Input crystal/clock (CLKIN) selected to
DOUT
0010
Low-frequency clock (CLKLOW)
selected to DOUT
0011
Wait-stated B900 (CLKWAIT) clock
selected to DOUT
0100
Free-running B900 (CLKFREE) clock
selected to DOUT
0101
Reserved
0110
Logic 0 selected to DOUT
0111
Logic 1 selected to DOUT
1xxx
Reserved
相关PDF资料 |
PDF描述 |
|---|---|
| B900J24PXX12I | 0-BIT, 80 MHz, OTHER DSP, PQFP44 |
| B900J24FXX12IT | 0-BIT, 59.88 MHz, OTHER DSP, PQFP44 |
| BA00CC0WCP-V5 | 1A Low Dropout Voltage Regulator with Shut Down Switch(Adustable Voltage) |
| BA10E6 | COPPER ALLOY, TIN FINISH, RING TERMINAL |
| BA12004 | 0.5 A, 7 CHANNEL, NPN, Si, POWER TRANSISTOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| B901 | 制造商:EDAL 制造商全称:EDAL 功能描述:Silicon Bridge Rectifier |
| B901 10.0MM | 制造商:DORMER TOOLS 功能描述:M/C REAMER B901 10.0MM |
| B901 4.0MM | 制造商:DORMER TOOLS 功能描述:M/C REAMER B901 4.0MM |
| B901 5.0MM | 制造商:DORMER TOOLS 功能描述:M/C REAMER B901 5.0MM |
| B901 8.0MM | 制造商:DORMER TOOLS 功能描述:M/C REAMER B901 8.0MM |
发布紧急采购，3分钟左右您将得到回复。