MM912H634DM1AER2 Freescale Semiconductor, MM912H634DM1AER2 Datasheet - Page 72

• Manufacturer Part Number: MM912H634DM1AER2
• Description: 16-bit Microcontrollers - MCU 64KS12 LIN2XLS/HS ISENSE
• Manufacturer: Freescale Semiconductor

Specifications of MM912H634DM1AER2

• Rohs: yes
• Core: HCS12
• Processor Series: MM912F634
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 2 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 5.5 V to 18 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 15
• Interface Type: SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 15
• Number Of Timers: 1
• Program Memory Type: Flash
• Supply Voltage - Max: 18 V
• Supply Voltage - Min: 5.5 V

Note:
Functional Description and Application Information
4.7.2
4.7.2.1
Table 83. Reset Status Register (RSR)
Table 84. RSR - Register Field Descriptions
Reading the Reset Status register will clear the information inside. Writing has no effect. LVR and LVRX are masked when POR
or WUR are set.
Freescale Semiconductor
Offset
70.
Note:
71.
W
R
2 - LVRX
5 - WDR
3 - WUR
0 - POR
4 - EXR
1 - LVR
Offset related to 0x0200 for blocking access and 0x300 for non blocking access within the global address space.
(70)
Field
As the VDD Regulator is shutdown once a LVRX condition is detected, The actual cause could be also a low voltage condition at the
VDDX regulator.
0x15
Register Definition
0
7
Reset Status Register (RSR)
Watchdog Reset - Reset caused by an incorrect serving of the watchdog.
External Reset - Reset caused by the RESET_A pin driven low externally for > t
Wake-up Reset - Reset caused by a wake-up from Sleep mode. To determine the wake-up source, refer to
“Wake-up / Cyclic
Low Voltage Reset VDDX - Reset caused by a low voltage condition monitored at the VDDX output.
Low Voltage Reset VDD - Reset caused by a low voltage condition monitored at the VDD output.
Power On Reset - Supply Voltage was below V
0
6
Sense".
WDR
5
POR
EXR
4
.
Description
WUR
3
RSTDF
LVRX
2
(71)
LVR
1
Access: User read
Section 4.8,
MM912F634
POR
0
Resets
72