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33889 데이터시트(PDF) 41 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) 41 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
41
33889
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 8. List of Registers
Register description
Table 9. MCR Register
Table 10. Control bits
Name
Address
Description
Comment and usage
MCR
$0 0 0
Mode control register
Write: Control of normal, standby, sleep, and stop modes
Read: BATFAIL flag and other status bits and flags
RCR
$0 0 1
Reset control register
Write: Configuration of reset voltage level, WD in stop mode, low power
mode selection
Read: CAN wake-up event, Tx permanent dominant
CAN
$0 1 0
CAN control register
Write: CAN module control: TX/RX, Rec only, term VBAT, Normal and
extended modes, filter at L0 input.
Read: CAN failure status bits
IOR
$0 1 1
I/O control register
Write: HS1 (high-side switch) control in normal and standby mode.
Gnd shift register level selection
Read: HS1 over temp bit, SHIFT bit (gnd shift above selection), VSUP
below 6.1V, V2 below 4.0 V
WUR
$1 0 0
Wake-up input register
Write: Control of wake-up input polarity
Read: Wake-up input, and real time LX input state
TIM
$1 0 1
Timing register
Write: TIM1, Watchdog timing control, window or Timeout mode.
Write: TIM2, Cyclic sense and force wake-up timing selection
LPC
$1 1 0
Low power mode
control register
Write: HS1 periodic activation in sleep and stop modes
Force wake-up control
INTR
$1 1 1
Interrupt register
Write: Interrupt source configuration
Read: INT source
MCR
D3
D2
D1
D0
$000b
W
MCTR2
MCTR1
MCTR0
R
BATFAIL
VDDTEMP
GFAIL
WDRST
Reset
0
0
0
0
Reset condition
POR, RESET
POR, RESET
POR, RESET
MCTR2
MCTR1
MCTR0
SBC MODE
DESCRIPTION
0
0
0
Enter/leave debug mode
To enter debug mode, SBC must be in Normal or
Standby mode and BATFAIL(1) must be still at 1. To
leave debug mode, BATFAIL must be at 0.
0
0
1
Normal
0
1
0
Standby
0
1
1
Stop, watchdog off (2)



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