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33742 데이터시트(PDF) 49 Page - Freescale Semiconductor, Inc

부품명 33742
상세설명  System Basis Chip with Enhanced High Speed CAN Transceiver
PDF  70 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

33742 데이터시트(HTML) 49 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
49
33742
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
RESET CONTROL REGISTER (RCR)
Tables 18
and 19 contain various Reset Control Register information.
CAN REGISTER (CAN)
Tables 20 through 23 contain the information on the CAN register. Table 20 describes control of the high-speed CAN module,
mode, slew rate, and wake-up.
Table 18. Reset Control Register
RCR
R/W
D3
D2
D1
D0
$001b
W
WDSTOP
NOSTOP
CAN SLEEP
RSTTH
R
Reset Value
–
1
0
0
0
Reset Condition
(Write)(56)
–
POR, RESET, STO2NR
POR, NR2N, NR2STB
POR, NR2N, NR2STB
POR
Notes
56.
See Table 13 page 47, for definitions of reset conditions.
Table 19. Reset Control Register Control Bits
Name
Logic
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.
CAN SLEEP
0
CAN Sleep mode disable (despite D0 bit in CAN register).
1
CAN Sleep mode enabled (in addition to D0 in CAN register).
RSTTH
0
Reset Threshold 1 selected (typ 4.6V).
1
Reset Threshold 2 selected (typ 4.2V).
Table 20. CAN Register
CAN
R/W
D3
D2
D1
D0
$010b
W
CANCLR
SC1
SC0
MODE
R
CANWU
CAN-F
CAN-UF
THERM-CUR
Reset Value
–
0
0
0
1
Reset Condition
(Write)(57)
–
POR
POR
POR
NR2N, STB2N
Notes
57.
See Table 13, page 47, for definitions of reset conditions.
Table 21. CANCLR Control Bits
Logic
Description
0
No effect.
1
Re-enables CAN driver after TXD permanent dominant or RXD permanent recessive failure occurred. Failure
recovery conditions must occur to re-enable.



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