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参数资料
| 型号： | TMS320C241FNS |
| 元件分类： | 数字信号处理 |
| 英文描述： | 16-Bit Digital Signal Processor |
| 中文描述： | 16位数字信号处理器 |
| 文件页数： | 23/116页 |
| 文件大小： | 1485K |
| 代理商： | TMS320C241FNS |
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TMS320F243, TMS320F241
DSP CONTROLLERS
SPRS064B – DECEMBER 1997 – REVISED FEBRUARY 1999
23
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
software-controlled wait-state generator (continued)
Table 6. Visibility Modes
BIT 10
BIT 9
VISIBILITY MODE
0
0
Bus visibility OFF (reduces power consumption and noise)
0
1
Bus visibility OFF (reduces power consumption and noise)
1
0
Data-address bus output to external address bus.
Data-data bus output to external data bus.
1
1
Program-address bus output to external address bus.
Program-data bus output to external data bus.
digital I/O and shared pin functions
The ’F243 has a total of 32 general-purpose, bidirectional, digital I/O (GPIO) pins that function as follows: six
pins are dedicated I/O pins (see Table 7) and 26 pins are shared between primary functions and I/O. The ’F241
has 26 I/O pins; all 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.
Table 7. Dedicated I/O Pins (’F243 Only)
’F243 PIN NUMBER
PIN NAME
20
IOPD2
21
IOPD3
23
IOPD4
25
IOPD5
27
IOPD6
29
IOPD7
description of shared I/O pins
The control structure for shared I/O pins is shown in Figure 4, 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.
相关PDF资料 |
PDF描述 |
|---|---|
| TMS320C241PGS | 16-Bit Digital Signal Processor |
| TMS320F241FNQ | 16-Bit Digital Signal Processor |
| TMS320F241PGQ | 16-Bit Digital Signal Processor |
| TMS320F243PGEQ | 16-Bit Digital Signal Processor |
| TMS320F243PGES | 16-Bit Digital Signal Processor |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TMS320C241PGS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:16-Bit Digital Signal Processor |
| TMS320C242 | 制造商:TI 制造商全称:Texas Instruments 功能描述:DSP CONTROLLER |
| TMS320C242FN | 制造商:TI 制造商全称:Texas Instruments 功能描述:DSP CONTROLLER |
| TMS320C242FNA | 制造商:未知厂家 制造商全称:未知厂家 功能描述:16-Bit Digital Signal Processor |
| TMS320C242FNS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:16-Bit Digital Signal Processor |
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