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參數(shù)資料
| 型號： | MC33389CDW |
| 廠商： | MOTOROLA INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | System Basis Chip with Low Speed Fault Tolerant CAN |
| 中文描述： | DATACOM, INTERFACE CIRCUIT, PDSO28 |
| 封裝： | PLASTIC, SO-28 |
| 文件頁數(shù)： | 15/35頁 |
| 文件大?。?/td> | 609K |
| 代理商： | MC33389CDW |
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MC33389
15
MC33389
SBC MODES
be taken into account by the SBC (except for the go to
Emergency mode).
Correspondence between SBC and CAN Transceiver Modes
The table here below gives the different possible CAN
transceiver modes versus SBC modes.
Table 14. CAN Modes Versus SBC Modes
Note: In case V2 is turned off either by SPI command
(standby mode) or by the SBC itself due to V2 over load
condition (V2 short to gnd or V2 over temperature) the CAN is
automatically set into the Bus standby mode and does not
return to TXRX mode automatically when V2 is back to 5V.
The CAN must be re configured to TXRX or RXonly mode
after a V2 turn off.
Watchdog
General
The software window watchdog function is used to
monitors the microcontroller operation in Normal and in
Standby modes. The window watchdog timing is derived from
the SBC-clock. The desired watchdog timing must be first
transmitted during the SBC configuration, in NormalRequest
mode, via SPI to SWCR register. It can also be changed later
on. Selectable watchdog timings are 5ms, 10ms, 20ms,
33ms, 50ms, 75ms, 100ms and 200ms. These timings
correspond to the full disable window plus full enable window.
Figure 15. Window Watchdog Timing
As soon as the watchdog trigger is received in the enable
window, the internal counter is reset and start a new disable
window. The SBC triggers the watchdog word at CSB low to
high transition. Any watchdog trigger outside the enable
window leads to SBC reset.
In Normal and Standby Modes
When SBC Is In The
Following Mode
CAN Transceiver
Can Be In
Reset condition
Bus Standby mode
NormalRequest
Bus Standby mode
Normal
RXTX or RXOnly or BusStandby
Standby
Bus Standby
Sleep
Bus Standby
Emergency
Bus Standby
Normal & V2 off (over load)
(note)
Bus standby
watchdog trigger
SBC watchdog window
earliest trigger time
latest
trigger
time
disabled window
nom. trigger period
time out
latest
reset
time
SBC-Reset OUT
50%
50%
Watchdog Timing
enable window
In normal mode the SBC get the watchdog word from the
microcontroller via SPI. In case of a trigger time failure (no
trigger or trigger outside the enable window) the SBC-reset is
switched to active.
NormalRequest, Sleep And Emergency Mode
Watchdog is not active in this modes.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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| MC33389CDWR2 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SYSTEM BASIC CHIPS 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MC33389DDW | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC SOW28 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MC33389DDWR2 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC SOW28 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MC33390D | 功能描述:IC TRANSCEIVER SER LINK 8-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| MC33390DR2 | 功能描述:IC TRANSCEIVER SER LINK 8-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
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