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33889 데이터시트(PDF) 37 Page - Freescale Semiconductor, Inc

부품명 33889
상세설명  System Basis Chip with Low Speed Fault Tolerant CAN Interface
PDF  60 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

33889 데이터시트(HTML) 37 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
37
33889
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 16. Simplified State Machine
Sleep
VDD1: OFF
V2: OFF
HS1 OFF or cyclic
CAN (always enable
SPI and L0,L1
Cyclic sense
Forced Wake-up
Low
Not active
No Running
Term Vbat.
Table 7. 33889 Table of Operations
The table below describe the SBC operation modes.
MODE
VOLTAGE
REGULATOR
HS1 SWITCH
WAKE-UP
CAPABILITIES
(IF ENABLED)
RESET PIN
INT
SOFTWARE
WATCHDOG
CAN CELL
State Machine (not valid in debug modes)
Power
Down
Reset
Normal Request
Standby
Stop
Normal
Sleep
Reset
counter
(1 ms) expired
VDD1 low OR W/D: time
out 350 ms & !Nostop
1
SPI: standby &
W/D
trigger
(note1)
3
SPI: Stop &
CS
low
to
high
transition
4
2
W/D: timeout OR VDD1 low
W/D: timeout & Nostop & !BATFAIL
1
W/D: timeout OR VDD1 low
1
2
W
/D
: tim
eo
ut O
R
VD
D1
low
(no
te2
)
1
Wake-up
(VDD1 high temperature OR (VDDd1 low > 100 ms & VSUP >BFew)) & Nostop & !BATFAIL
1
2
3
4 denotes priority
State machine description:
“Nostop” means Nostop bit = 1
“! Nostop” means Nostop bit = 0
“BATFAIL” means Batfail bit = 1
“! BATFAIL” means Batfail bit = 0
“VDD1 over temperature” means VDD1 thermal shutdown occurs
“VDD1 low” means VDD1 below reset threshold
“VDD1 low > 100 ms” means VDD1 below reset threshold for more than
100 ms
“W/D: Trigger” means TIM1 register write operation.
VSUP > BFew means VSUP > Battery Fall Early Warning (6.1 V typical)
“W/D: timeout” means TIM1 register not written before W/D timeout period
expired, or W/D written in incorrect time window if window W/D selected
(except stop mode). In normal request mode timeout is 355 ms p2.2 (350 ms
p3)ms.
“SPI: Sleep” means SPI write command to MCR register, data sleep
“SPI: Stop” means SPI write command to MCR register, data stop
“SPI: Normal” means SPI write command to MCR register, data normal
“SPI: Standby” means SPI write command to MCR register, data standby
Note 1: these 2 SPI commands must be send in this sequence and
consecutively.
Note 2: if W/D activated



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