Datasheet > 5962-03A0601VXC

5962-03A0601VXC

更新时间： 2024-01-08 15:13:26

品牌	Logo	应用领域
爱特美尔 - ATMEL		控制器
页数	文件大小	规格书
50页	509K
描述
CAN Controller for Space Application

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技术参数
数据手册

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5962-03A0601VXC 技术参数

生命周期：	Obsolete	零件包装代码：	LCC
包装说明：	QCCJ,	针数：	44
Reach Compliance Code：	unknown	HTS代码：	8542.31.00.01
风险等级：	5.74	地址总线宽度：	8
边界扫描：	NO	最大数据传输速率：	0.125 MBps
外部数据总线宽度：	8	JESD-30 代码：	S-CQCC-J44
长度：	16.25 mm	低功率模式：	YES
串行 I/O 数：	1	端子数量：	44
最高工作温度：	125 °C	最低工作温度：	-55 °C
封装主体材料：	CERAMIC, METAL-SEALED COFIRED	封装代码：	QCCJ
封装形状：	SQUARE	封装形式：	CHIP CARRIER
认证状态：	Not Qualified	筛选级别：	MIL-PRF-38535 Class V
座面最大高度：	4.95 mm	最大供电电压：	5.5 V
最小供电电压：	4.5 V	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	MILITARY	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
宽度：	16.25 mm	uPs/uCs/外围集成电路类型：	SERIAL IO/COMMUNICATION CONTROLLER, LAN
Base Number Matches：	1

5962-03A0601VXC 数据手册

AT7908E

The error_counters block is a counter that receives signals from can_tx and can_rx to

calculate the error state of the CAN. If the number of errors is higher than 127, the

AT7908E will be on the error passive state. If error counters is higher than 255, the

AT7908E will be on the bus-off state.

The synchronizer block synchronizes the controller with the can_rx incoming signal

and generates the internal clock and reset signals for the other blocks of the controller.

The stuff handler block handles the stuff bit generation, compliant with the standard

BOSCH 2.0B specification. error_frame_gen block generates the error frame on the

bus.

In the next sections, the interface block, the internal registers and the operational modes

of the AT7908E will be described.

Transmission of Message

To transmit a message on the bus, the controller must program the configuration regis-

ters of the AT7908E (interrupt generator configuration, data rate, bit timing

configuration, message length) and the transmit buffer. After this, the controller must

write in the internal register the bit (Txreq=1) to start the transmission. At this point, the

Transmit message buffer is sent to the bus line. At every moment the external MCU can

readout the status of the controller (error condition, bus-off condition, transmission

active or transmission OK).

Incoming Message

The incoming message passes through the global mask and is checked with the identi-

fier of the first receiver message buffer. If the message is accepted, the data will be

stored in the first message buffer and the status of the receiver message objects will be

updated with the information of the received message: length of message, extended or

standard frame message, reception OK or overrun condition. The incoming message is

stored in the message buffer at the end of the END of FRAME field (7 recessive bits).

If the incoming message is a remote frame request from another CAN node, the incom-

ing remote request will not be stored on the RX message buffer.

Remote Frame

The AT7908E supports remote frame features. To send on the bus a remote frame

request, the MCU must write two internal bits of SETUP register (TMRMR=1 and

TXRM=0). The arbitration registers of the transmitter message buffer must have the

identifier for the remote frame request. The start of the remote frame request will be per-

formed when the transmission request is set by the MCU on the AT7908E. The

AT7908E that receives a REMOTE FRAME request (RTR bit =recessive) that matches

the identifier stored on own TX_arbitration register (filtering functionality with don’t care

feature) send on the bus the TX message buffer as an answer to the remote frame

request. To answer the remote frame request, the AT7908E must be pre-programmed

with two bits of the internal register: TMRMR=0 and TXRM=1. The TX arbitration regis-

ter must be initialized with the message identifier to which to answer and the transmitter

data buffer must be loaded with the data to be sent as the answer to the remote frame

request. The transmission request must be set as:

Answer to remote request if

for i = 28 down to 18

(“MsgID(i)” XOR” TX_arbitration (i) )AND “Accept. Mask(i)” = 0

Filtering of Message

The filtering function is implemented with a global mask and the arbitration register of

the receiver message buffers. The Global Mask permits to define the don’t care bit on

the filtering operation. The incoming message ID (msg_ID(28:18) is checked (xor) with

4268D–AERO–11/09

1...4 5 678 9 10...50

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与5962-03A0601VXC相关器件

型号	品牌	描述	获取价格	数据表
5962-03A0601VXX	WEDC	LAN Controller, 1 Channel(s), 0.125MBps, CMOS, CQCC44, 17.14 X 17.14 MM, 1.27 MM PITCH, CE	获取价格
5962-03A06QXC	ATMEL	CAN Controller for Space Application	获取价格
5962-03A06VXC	ATMEL	CAN Controller for Space Application	获取价格
5962-03B0103QXX	ACTEL	Field Programmable Gate Array, 44000 Gates, CMOS, FP-100	获取价格
5962-03B0103V5C	ACTEL	Field Programmable Gate Array, 44000 Gates, CMOS, QFP-132	获取价格
5962-03B0103VXX	ACTEL	Field Programmable Gate Array, 44000 Gates, CMOS, FP-100	获取价格

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