參數(shù)資料
型號: SAF82525N
廠商: INFINEON TECHNOLOGIES AG
英文描述: Data Communications ICs
中文描述: 數(shù)據通信集成電路
文件頁數(shù): 78/126頁
文件大?。?/td> 730K
代理商: SAF82525N
Semiconductor Group
78
SAB 82525
SAB 82526
SAF 82525
SAF 82526
After the DMA controller has been set up for the reception of the next frame, the CPU must be
issue a RMC command to acknowledge the completion of the receive frame processing.
The HSCX will not initiate further DMA cycles by activating the DRQR line prior to the reception
of RMC.
Note:
It’s also possible to set up the DMA controller immediately after the start of a frame has
been detected using the HSCX’s RFS (Receive Frame Start) interrupt option (
see
chapter 4.3
).
The following figure gives an example of a DMA controlled reception sequence, supposed that
a long frame (66 bytes) followed by two short frames (6 bytes each) are received.
Figure 38
DMA Driven Reception Sequence Example
Serial
Interface
HSCX
CPU/DMA
Interface
ITD00252
RME
32
32
2
6
RF2
RMC
Receive Frame
(66
Bytes)
DMA Read Cycles (68)
DRQR(8)
. . .
. . .
DRQR(8)
RD
. . .
DRQR(4)
DRQR(32)
. . .
RD
RD
RD
RD
. . .
DRQR(32)
RF3
6
R
1
RD
RD
RME
RMC
RD
RD
RD
RME
RMC
R
R
相關PDF資料
PDF描述
SAF82526 Data Communications ICs
SAF82526N Data Communications ICs
SAB82525 Data Communications ICs
SAB82525H Data Communications ICs
SAF82532H-10 ICs for Communications
相關代理商/技術參數(shù)
參數(shù)描述
SAF82525NV2.1 制造商:Infineon Technologies AG 功能描述:
SAF82525NV2.2 功能描述:網絡控制器與處理器 IC T/E RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
SAF82525NV21 制造商:Infineon Technologies AG 功能描述:Communication Controller 44-Pin PLCC
SAF82525N-V21 功能描述:IC CONTROLLER 2-CH SER 44-PLCC RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應商設備封裝:36-QFN(6x6) 包裝:* 其它名稱:Q6396337A
SAF82525V2.1 制造商:Rochester Electronics LLC 功能描述:- Bulk