參數(shù)資料
型號： TMS320C40-50
元件分類： 數(shù)字信號處理
英文描述： Digital Signal Processors
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 63/132頁
文件大?。?/td> 1707K
代理商： TMS320C40-50
SPRS145G
–
JULY 2000
–
REVISED FEBRUARY 2002
63
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
–
1443
digital I/O and shared pin functions
The 240xA has up to 41 general-purpose, bidirectional, digital I/O (GPIO) pins
—
most of which are shared
between primary functions and I/O. Most I/O pins of the 240xA are shared with other functions. The digital I/O
ports module provides a flexible method for controlling both dedicated I/O and shared pin functions. All I/O and
shared pin functions are controlled using eight 16-bit registers. These registers are divided into two types:
Output Control Registers
—
used to control the multiplexer selection that chooses between the primary
function of a pin or the general-purpose I/O function.
Data and Control Registers
—
used to control the data and data direction of bidirectional I/O pins.
description of shared I/O pins
The control structure for shared I/O pins is shown in Figure 17, where each pin has three bits that define its
operation:
Mux control bit
—
this bit selects between the primary function (1) and I/O function (0) of the pin.
I/O direction bit
—
if the I/O function is selected for the pin (mux control bit is set to 0), this bit determines
whether the pin is an input (0) or an output (1).
I/O data bit
—
if the I/O function is selected for the pin (mux control bit is set to 0) and the direction selected
is an input, data is read from this bit; if the direction selected is an output, data is written to this bit.
The mux control bit, I/O direction bit, and I/O data bit are in the I/O control registers.
Pin
(Read/Write)
IOP Data Bit
In
Out
0 = Input
1 = Output
0
1
MUX Control Bit
0 = I/O Function
1 = Primary Function
IOP DIR Bit
Primary
Function
or I/O Pin
Pullup
or
Pulldown
(Internal)
Primary
Function
(Output Section)
Primary
Function
(Input Section)
Figure 17. Shared Pin Configuration
A summary of shared pin configurations and associated bits is shown in Table 12.
相關(guān)PDF資料
PDF描述
TMS320C40-60 Digital Signal Processors
TMS320C40TABL40 32-Bit Digital Signal Processor
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TMS320C40TABL60 32-Bit Digital Signal Processor
TMS320C44-50 Digital Signal Processors
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320C40-60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Signal Processors
TMS320C40GFL40 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Digital Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320C40GFL50 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Digital Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320C40GFL60 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Digital Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320C40TABL40 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Digital Signal Processor
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