參數(shù)資料
型號(hào): SJA1000
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Stand-alone CAN controller(單機(jī)CAN控制器)
中文描述: 2 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PDIP28
封裝: 0.600 INCH, PLASTIC, DIP-28
文件頁(yè)數(shù): 39/68頁(yè)
文件大小: 234K
代理商: SJA1000
2000 Jan 04
39
Philips Semiconductors
Product specification
Stand-alone CAN controller
SJA1000
6.4.13
T
RANSMIT BUFFER
The global layout of the transmit buffer is shown in Fig.7.
One has to distinguish between the Standard Frame
Format (SFF) and the Extended Frame Format (EFF)
configuration. The transmit buffer allows the definition of
one transmit message with up to eight data bytes.
6.4.13.1
Transmit buffer layout
The transmit buffer layout is subdivided into descriptor and
data fields where the first byte of the descriptor field is the
frame information byte (frame information). It describes
the frame format (SFF or EFF), remote or data frame and
the data length. Two identifier bytes for SFF or four bytes
for EFF messages follow. The data field contains up to
eight data bytes.
The transmit buffer has a length of 13 bytes and is located
in the CAN address range from 16 to 28.
Note, that a direct access to the transmit buffer RAM is
possible using the CAN address space from 96 to 108.
This RAM area is reserved for the transmit buffer.
The three following bytes may be used for general
purposes (CAN address 109, 110 and 111).
Fig.7 Transmit buffer layout for standard and extended frame format configurations.
a. Standard frame format.
b. Extended frame format.
handbook, full pagewidth
MGK621
CAN address
16
TX frame information
17
TX identifier 1
18
TX identifier 2
19
TX data byte 1
20
TX data byte 2
21
TX data byte 3
22
TX data byte 4
23
TX data byte 5
24
TX data byte 6
25
TX data byte 7
26
TX data byte 8
27
unused
28
unused
CAN address
16
TX frame information
17
TX identifier 1
18
TX identifier 2
19
TX identifier 3
20
TX identifier 4
21
TX data byte 1
22
TX data byte 2
23
TX data byte 3
24
TX data byte 4
25
TX data byte 5
26
TX data byte 6
27
TX data byte 7
28
TX data byte 8
6.4.13.2
Descriptor field of the transmit buffer
The bit layout of the transmit buffer is represented in
Tables 25 to 27 for SFF and Tables 28 to 32 for EFF.
The given configuration is chosen to be compatible with
the receive buffer layout (see Section 6.4.14.1).
相關(guān)PDF資料
PDF描述
SJE1349 NPN PLASTIC POWER TRANSISTOR
SK016R SCRs
SK006V SCRs
SK008D Box-shaped pin header, Discrete wire crimping connection, Discrete wire connectors; HRS No: 543-0505-6 00; No. of Positions: 12; Connector Type: Wire; Contact Gender: Female; Contact Spacing (mm): 2; Terminal Pitch (mm): 2; Current Rating(Amps)(Max.): 2; Operating Temperature Range (degrees C): -30 to 85; General Description: Housing; For Discrete wire; Crimping
SK008L SCRs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SJA1000/N1,112 功能描述:網(wǎng)絡(luò)控制器與處理器 IC STAND-ALONE CAN CONTROLLER RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
SJA1000/N1112 制造商:NXP Semiconductors 功能描述:IC CAN CONTROLLER 1000 DIP28
SJA1000N 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stand-alone CAN controller
SJA1000T 制造商:NXP Semiconductors 功能描述:
SJA1000T/N,112 功能描述:網(wǎng)絡(luò)控制器與處理器 IC STAND ALONE CAN CONTROLLER RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray