參數(shù)資料
型號： TMS320F28335_1
廠商： Texas Instruments, Inc.
英文描述： Variable Capacitance Diode for TV Tuner VHF Tuning; Ratings VR (V): 32; Characteristics n: 12.0 min; Characteristics rs (ohm) max: 0.85; Characteristics C (pF) max: C2 = 32.2 to 37.5 C25 = 2.57 to 3.0; Characteristics CVR/CVR: 2/25; Cl: 2.777; Package: UFP
中文描述： 數(shù)字信號控制器（DSC）
文件頁數(shù)： 84/166頁
文件大?。?/td> 1889K
代理商： TMS320F28335_1
www.ti.com
A
4.10 Serial Communications Interface (SCI) Modules (SCI-A, SCI-B, SCI-C)
Baud rate =
LSPCLK
16
LSPCLK
(BRR
1) * 8
when BRR
≠
0
Baud rate =
when BRR = 0
Max bit rate
150 MHz
16
100 MHz
16
9.375
10
6
b s
(for 150-MHz devices)
Max bit rate
6.25
10
6
b s
(for 100-MHz devices)
TMS320F28335, TMS320F28334, TMS320F28332
Digital Signal Controllers (DSCs)
SPRS439B–JUNE 2007–REVISED OCTOBER 2007
The F2833x devices include three serial communications interface (SCI) modules. The SCI modules
support digital communications between the CPU and other asynchronous peripherals that use the
standard non-return-to-zero (NRZ) format. The SCI receiver and transmitter are double-buffered, and each
has its own separate enable and interrupt bits. Both can be operated independently or simultaneously in
the full-duplex mode. To ensure data integrity, the SCI checks received data for break detection, parity,
overrun, and framing errors. The bit rate is programmable to over 65000 different speeds through a 16-bit
baud-select register.
Features of each SCI module include:
Two external pins:
–
SCITXD: SCI transmit-output pin
–
SCIRXD: SCI receive-input pin
NOTE: Both pins can be used as GPIO if not used for SCI.
–
Baud rate programmable to 64K different rates:
Data-word format
–
One start bit
–
Data-word length programmable from one to eight bits
–
Optional even/odd/no parity bit
–
One or two stop bits
Four error-detection flags: parity, overrun, framing, and break detection
Two wake-up multiprocessor modes: idle-line and address bit
Half- or full-duplex operation
Double-buffered receive and transmit functions
Transmitter and receiver operations can be accomplished through interrupt-driven or polled algorithms
with status flags.
–
Transmitter: TXRDY flag (transmitter-buffer register is ready to receive another character) and TX
EMPTY flag (transmitter-shift register is empty)
–
Receiver: RXRDY flag (receiver-buffer register is ready to receive another character), BRKDT flag
(break condition occurred), and RX ERROR flag (monitoring four interrupt conditions)
Separate enable bits for transmitter and receiver interrupts (except BRKDT)
NRZ (non-return-to-zero) format
Ten SCI module control registers located in the control register frame beginning at address 7050h
NOTE
All registers in this module are 8-bit registers that are connected to Peripheral Frame 2.
When a register is accessed, the register data is in the lower byte (7-0), and the upper
byte (15-8) is read as zeros. Writing to the upper byte has no effect.
Enhanced features:
Auto baud-detect hardware logic
Peripherals
84
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TMS320F28335ZHHA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Digital Signal Controller 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
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