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| 型號： | TMS320F28044PZQ |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Digital Signal Processor |
| 中文描述： | 數(shù)字信號處理器 |
| 文件頁數(shù)： | 28/105頁 |
| 文件大小： | 768K |
| 代理商： | TMS320F28044PZQ |
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A
3.2.20
Serial Port Peripherals
3.3
Register Map
TMS320F28044
Digital Signal Processor
SPRS357A–AUGUST 2006–REVISED OCTOBER 2006
The 28044 device supports the following serial communication peripherals:
SPI:
The SPI is a high-speed, synchronous serial I/O port that allows a serial bit stream of
programmed length (one to sixteen bits) to be shifted into and out of the device at a
programmable bit-transfer rate. Normally, the SPI is used for communications between the
DSP controller and external peripherals or another processor. Typical applications include
external I/O or peripheral expansion through devices such as shift registers, display
drivers, and ADCs. Multi-device communications are supported by the master/slave
operation of the SPI. On the 28044, the SPI contains a 16-level receive and transmit FIFO
for reducing interrupt servicing overhead.
The serial communications interface is a two-wire asynchronous serial port, commonly
known as UART. On the 28044, the SCI contains a 16-level receive and transmit FIFO for
reducing interrupt servicing overhead.
The inter-integrated circuit (I
2
C) module provides an interface between a DSP and other
devices compliant with Philips Semiconductors Inter-IC bus (I
2
C-bus) specification version
2.1 and connected by way of an I
2
C-bus. External components attached to this 2-wire
serial bus can transmit/receive up to 8-bit data to/from the DSP through the I
2
C module.
On the 28044, the I
2
C contains a 16-level receive and transmit FIFO for reducing interrupt
servicing overhead.
SCI:
I
2
C:
The 28044 device contains three peripheral register spaces. The spaces are categorized as follows:
Peripheral
Frame 0:
Peripheral
Frame 1
Peripheral
Frame 2:
These are peripherals that are mapped directly to the CPU memory bus.
See
Table 3-4
These are peripherals that are mapped to the 32-bit peripheral bus.
See
Table 3-5
These are peripherals that are mapped to the 16-bit peripheral bus.
See
Table 3-6
Table 3-4. Peripheral Frame 0 Registers
(1)(2)
NAME
ADDRESS RANGE
0x0880 - 0x09FF
SIZE (x16)
384
ACCESS TYPE
(3)
Device Emulation Registers
EALLOW protected
EALLOW protected
CSM Protected
EALLOW protected
FLASH Registers
(4)
0x0A80 - 0x0ADF
96
Code Security Module Registers
ADC Result Registers (dual-mapped)
CPU-TIMER0/1/2 Registers
PIE Registers
PIE Vector Table
0x0AE0 - 0x0AEF
0xB00 - 0xB0F
0x0C00 - 0x0C3F
0x0CE0 - 0x0CFF
0x0D00 - 0x0DFF
16
16
64
32
256
Not EALLOW protected
EALLOW protected
(1)
(2)
(3)
Registers in Frame 0 support 16-bit and 32-bit accesses.
Missing segments of memory space are reserved and should not be used in applications.
If registers are EALLOW protected, then writes cannot be performed until the EALLOW instruction is executed. The EDIS instruction
disables writes to prevent stray code or pointers from corrupting register contents.
The Flash Registers are also protected by the Code Security Module (CSM).
(4)
28
Functional Overview
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMS320F28044PZS | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit DSC w/ 128KB Flash 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 安裝風格:SMD/SMT |
| TMS320F28045PZA | 制造商:Texas Instruments 功能描述:- Trays |
| TMS320F28045PZS | 制造商:Texas Instruments 功能描述:- Trays |
| TMS320F28050PNQ | 制造商:Texas Instruments 功能描述:GIZMO |
| TMS320F28050PNS | 制造商:Texas Instruments 功能描述:GIZMO |
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