mc33742 Freescale Semiconductor, Inc, mc33742 Datasheet - Page 43

• Manufacturer Part Number: mc33742
• Description: Mc33742 System Basis Chip Sbc With Enhanced High-speed Can Transceiver
• Manufacturer: Freescale Semiconductor, Inc

MODE CONTROL REGISTER (MCR)
Table 15. Mode Control Register
Table 16. Mode Control Register Control Bits
Table 17. Mode Control Register Status Bits
Analog Integrated Circuit Device Data
Freescale Semiconductor
Notes
Notes
MCTR
Reset Condition (Write)
49.
50.
51.
52.
Tables 15
2
0
0
0
0
0
1
1
1
1
BATFAIL bit cannot be set by SPI. BATFAIL is set when VSUP falls below 3.0 V.
See
Watchdog ON or OFF depends on RCR bit D3.
Before entering Sleep mode, BATFAIL bit in MCR must be previously cleared (MCR read operation), and NOSTOP bit in RCR must be
previously set to logic [1].
VDDTEMP
Reset Value
MCTR
BATFAIL
WDRST
GFAIL
Name
$000b
1
0
0
1
1
1
0
0
1
1
MCR
Table 13
through
MCTR
0
0
1
0
1
1
0
1
0
1
page 42, for definitions of reset conditions
17
(50)
Stop, Watchdog OFF
Stop, Watchdog ON
describes the various Mode Control Registers.
Enter/Exit Debug
33742S Mode
Sleep
Standby
Standby
R/W
Normal
Normal
Mode
W
R
Stop
–
–
(51)
(51)
(52)
Logic
0
1
0
1
0
1
0
1
BATFAIL
To enter/exit Debug Mode, refer to detailed description in
Software Debug with the
No Watchdog running. Debug Mode.
D3
–
–
–
(49)
VSUP was not below V
VSUP has been below V
No overtemperature pre-warning.
Temperature pre-warning on VDD regulator (bit latched).
No failure.
CAN Failure or HS overtemperature or V2 low.
No watchdog reset occurred.
Watchdog reset occurred.
POR, RESET
VDDTEMP
MCTR2
33742, page 30.
D2
0
BF
BF
.
.
Description
Description
–
–
–
–
–
POR, RESET
MCTR1
GFAIL
LOGIC COMMANDS AND REGISTERS
D1
0
FUNCTIONAL DEVICE OPERATION
Debug Mode: Hardware and
POR, RESET
WDRST
MCTR0
D0
0
33742
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