參數(shù)資料
型號(hào): MC33989
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
元件分類: CAN
英文描述: System Basis Chip with High Speed CAN Transceiver(帶高速CAN收發(fā)器的系統(tǒng)基片)
中文描述: 系統(tǒng)基礎(chǔ)芯片的高速CAN收發(fā)器(帶高速的CAN收發(fā)器的系統(tǒng)基片)
文件頁(yè)數(shù): 23/32頁(yè)
文件大?。?/td> 676K
代理商: MC33989
MC33989
23
MC33989
Control bits:
7.1.3
CAN register
Description: control of the high speed CAN module, mode, slew rate and wake up
7.1.3.1
High speed CAN transceiver modes
Description: Mode bit (D0) controls the state of the CAN module, Normal or Sleep mode. SCO bit (D1) defines the slew rate
when the CAN module is in normal, and controls the wake up option (wake up enable or disable) when the CAN module is in sleep
mode. CAN module modes (Normal and Sleep) are independent of the SBC modes.
Condition
SAFE
WDOGB pin
Reset pin
Device power up
0
1
0
0 => 1
V1 normal, WD is properly triggered
0
1
1
1
1
V1 drops below Rstth
0
1
1
1
0
0
WD time out
0
1
0
0
1
Status bit
Bit value
Description
WDSTOP
0
No watchdog in stop mode
1
Watchdog runs in stop mode
NOSTOP
0
Device can not enter sleep mode
1
Sleep mode is allowed, device can enter sleep mode
RSTTH
0
Reset threshold 1 selected (typ 4.6V)
1
Reset threshold 2 selected (typ 4.2V)
CAN
D3
D2
D1
D0
$010b
W
SC1
SC0
MODE
R
CANWU
TXF
CUR
THERM
Reset value
0
0
0
Reset condition
POR
POR
POR
SC1
SC0
MODE
CAN Mode
0
0
0
CAN normal, slew rate 0
0
1
0
CAN normal, slew rate 1
1
0
0
CAN normal, slew rate 2
1
1
0
CAN normal, slew rate 3
X
1
1
CAN sleep and CAN wake up disable
X
0
1
CAN sleep and CAN wake up enable
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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