mc33889 Freescale Semiconductor, Inc, mc33889 Datasheet - Page 42

• Manufacturer Part Number: mc33889
• Description: System Basis Chip With Low Speed Fault Tolerant Can Interface
• Manufacturer: Freescale Semiconductor, Inc

Table 11. Status bits
Table 12. RCR register
42
33889
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
MCTR2
STATUS BIT
(1): Bit BATFAIL cannot be set by SPI. BATFAIL is set when V
(2): Watchdog ON or OFF depends on the RCR register bit D3.
(3): Before entering sleep mode, bit NOSTOP in RCR register must be previously set to 1.
(4): Stop command should be replaced by Stop Watchdog OFF. MCTR2=0, MCTR1= MCTR0=1
Reset condition
VDDTEMP
BATFAIL
0
1
1
1
1
WDRST
GFAIL
$001b
Reset
RCR
MCTR1
1
1
0
0
1
DESCRIPTION
W
R
MCTR0
1
0
1
0
1
POR, RESET
WDSTOP
D3
1
SBC MODE
Stop, watchdog on
Logic OR of CAN failure, HS1 failure, V2LOW
Temperature pre-warning on VDD (latched)
Sleep
Stop
Standby
Normal
(4)
(3)
POR, NR2N
Battery fail flag (V
Watchdog reset occurred
NOSTOP
SUP
D2
0
(2)
falls below 3V.
DESCRIPTION
SUP
<3V)
No watchdog running, debug mode
TXFAILURE
Analog Integrated Circuit Device Data
D1
Freescale Semiconductor
CANWU
RSTTH
POR
D0
0