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參數(shù)資料
| 型號(hào)： | 33742 |
| 廠商： | Motorola, Inc. |
| 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(qiáng)型（SBC）的高速CAN收發(fā)器 |
| 文件頁數(shù)： | 40/52頁 |
| 文件大小： | 1087K |
| 代理商： | 33742 |
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33742
40
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Reset Control Register (RCR)
Tables 13
and
14
contain various Reset Control Register
information.
——————————————————
CAN Register (CAN)
Tables 15
through
18
contain various CAN register
information.
Table 15
describes 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 interface,
TXRX or Sleep mode (
Table 17
). SC0 bit (D1) defines the slew
rate when the CAN module is in TXRX, and it controls the wake-
up option (wake-up enable or disable) when the CAN module is
in Sleep mode.
Table 13. 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)
(Note 53)
–
POR,
RESET,
STO2NR
POR,
NR2N,
NR2STB
POR,
NR2N,
NR2STB
POR
Notes
53.
See
Table 8
, page 38, for definitions of reset conditions.
Table 14. Reset Control Register Control Bits
Name
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.
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 4.6 V).
1
Reset Threshold 2 selected (typ 4.2 V).
Table 15. 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)
(Note 54)
–
POR
POR
POR
NR2N,
STB2N
Notes
54.
See
Table 8
, page 38, for definitions of reset conditions.
Table 16. CANCLR Control Bits
Value
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.
Table 17. CAN High-Speed Transceiver Modes
SC1
SC0
MODE
CAN Mode
(Pass 1.1)
0
0
0
CAN TXRX, Slew Rate 0
0
1
0
CAN TXRX, Slew Rate 1
1
0
0
CAN TXRX, Slew Rate 2
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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