參數(shù)資料
型號： MCZ33742EG
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
元件分類： CAN
英文描述： System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver
中文描述： 系統(tǒng)基礎(chǔ)芯片的增強型（SBC）的高速CAN收發(fā)器
文件頁數(shù)： 29/65頁
文件大?。?/td> 1158K
代理商： MCZ33742EG
Analog Integrated Circuit Device Data
Freescale Semiconductor
29
33742
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 13. SBC State Diagram (Not Valid in Debug Modes)
Figure 14. Operation After SBC Power-Up
Notes
42.
43.
These two SPI commands must be sent consecutively in this sequence.
If watchdog activated.
TiWachdog
(V
DD
High Temperature OR [V
DD
Low > 100 ms & V
SUP
> BFew]) & Nostop &!BATFAIL
Watchdog: Time-out & Nostop &!BATFAIL
Power
Down
Reset
Normal Request
Stop
Sleep
Reset Counter (3.4 ms)
Expired
3
Low OR Watchdog:
1
W
SPI: Stand-by and
Watchdog Trigger
3
S
S
SPI: Stop & CS
LOW to HIGH
Transition
SP:Sop&CSLowto
HghTanston
4
2
Watchdog: Timeout OR V
DD
Low
N
S
t
N
&
T
1
Watchdog: Timeout OR V
DD
Low
1
2
Wachdog Tmeou ORV
DD
Low
(43
1
Wake-Up
1
2
3
4
Denotes priority
State Machine Description
Nostop = Nostop bit = 1
! Nostop = Nostop bit = 0
BATFAIL = Batfail bit = 1
! BATFAIL = Batfail bit = 0
V
DD
Overtemperature = V
DD
thermal shutdown occurs
V
DD
LOW = V
DD
below reset threshold
V
DD
LOW > 100 ms = V
DD
below reset threshold for more than 100 ms
Watchdog: Trigger = TIM1 subregister write operation
V
SUP
> BFew = V
SUP
> Battery Fail Early Warning (6.1 V typical)
Watchdog: Timeout = TIM1 register not written before watchdog timeout period
expired, or watchdog written in incorrect time window if watchdog window
selected (except Stop mode). In Normal Request mode, timeout is 355 ms
p2.2 (350 ms p3) ms.
SPI: Sleep = SPI write command to MCR register, data sleep
SPI: Stop = SPI write command to MCR register, data stop
SPI: Normal = SPI write command to MCR register, data normal
SPI: Standby = SPI write command to MCR register, data standby
Normal
Standby
Power-Up
Reset
Normal
Request
Normal
Trigger
Batfail
No Stop
Sleep
No
No
Yes
No
Yes
Yes
Operation after power-up if no trigger appears
Operation after reset of BATFAIL if no trigger appears
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