参数资料
型号: MC33989DWR2
厂商: Freescale Semiconductor
文件页数: 28/72页
文件大小: 0K
描述: IC SYSTEM BASE W/CAN 28-SOIC
标准包装: 1
控制器类型: 系统基础芯片
接口: CAN
电源电压: 5.5 V ~ 18 V
电流 - 电源: 45mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 剪切带 (CT)
配用: KIT33989DWEVB-ND - KIT EVAL 33989DW HS SBC
其它名称: MC33989DWR2CT
Analog Integrated Circuit Device Data
34
Freescale Semiconductor
33989
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
CAN Register (CAN)
Table 16 provides control of the high-speed CAN module, mode, slew rate, and wake-up.
High Speed CAN Transceiver Modes
The mode bit (D0) controls the state of the CAN module, Normal or Sleep modes. See Table 17. SC0 bit (D1) defines the slew
rate when the CAN module is in Normal mode, 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. Please see Table 18.
Table 14. RCR Control Bits
SAFE
WD Pin
Reset Pin
Condition
0
1
0
0 = > 1
Device Power-Up
0
1
V1 Normal, WD Properly Triggered
0
1
0
1
V1 Drops Below RSTTH
0
1
0
1
WD Timeout
Table 15. RCR Status Bits
Status Bits
Bit Value
Description
WDSTOP
0
No Watchdog in Stop Mode
1
Watchdog Runs in Stop Mode
NOSTOP
0
Device Cannot Enter Sleep Mode
1
Sleep Mode Allowed, Device Can Enter Sleep Mode
RSTTH
0
Reset Threshold 1 Selected (typ 4.6 V)
1
Reset Threshold 2 Selected (typ 4.2 V)
Table 16. CAN Register
CAN
D3
D2
D1
D0
$010B
W
SC1
SC0
MODE
R
CANWU
TXF
CUR
THERM
Reset Value
0
Reset Condition
POR
Table 17. CAN High Speed Transceiver Modes
SC1
SC0
MODE
CAN Mode
0
CAN Normal, Slew Rate 0
0
1
0
CAN Normal, Slew Rate 1
1
0
CAN Normal, Slew Rate 2
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