MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 65

• Manufacturer Part Number: MM912H634CV1AE
• Description: 64KS12 LIN2xLS/HS Isense
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MM912H634CV1AE

• Applications: Automotive
• Core Processor: HCS12
• Program Memory Type: FLASH (64 kB)
• Controller Series: HCS12
• Ram Size: 6K x 8
• Interface: LIN
• Number Of I /o: -
• Voltage - Supply: 5.5 V ~ 27 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.7
Interrupts are used to signal a microcontroller that a peripheral needs to be serviced. While in Stop mode, the
interrupt signal is used to signal Wake-up events. The interrupts are signaled by an active high level of the D2DINT
pin, which will remain high until the interrupt is acknowledged via the D2D-Interface. Interrupts are only asserted
while in Normal mode.
4.7.1
Once an Interrupt is signalized, there are two options to identify the corresponding source(s).
4.7.1.1
All Interrupt sources in MM912_634 analog die are mirrored to a special Interrupt Source Register (ISR). This register is read
only and will indicate all currently pending Interrupts. Reading this register will not acknowledge any interrupt. An additional D2D
access is necessary to serve the specific module.
4.7.1.1.1
Freescale Semiconductor
Note:
Offset
65.
W
R
(65)
Offset related to 0x0200 for blocking access and 0x300 for non blocking access within the global address space.
0x00 (0x00 and 0x01 for 8Bit access)
Interrupts
15
0
Interrupt Source Identification
Interrupt Source Mirror
The VSI - Voltage Status Interrupt combines the five status flags for the Low Battery
Interrupt, Low Voltage Interrupt, High Voltage Interrupt, Voltage Regulator Over-voltage
Interrupt, and the Voltage Regulator High Temperature Interrupt. The specific source can be
identified by reading the Voltage Status Register - VSR.
Interrupt Source Register (ISR)
14
0
10 - LINOT
11 - HSOT
12 - LSOT
13 - HOT
6 - ERR
1 - CH0
2 - CH1
3 - CH2
4 - CH3
5 - TOV
0 - VSI
9 - SCI
8 - RX
7 - TX
Field
HOT
13
LSOT HSOT LINOT
12
VSI - Voltage Status Interrupt combining the following sources:
CH0 - TIM Channel 0 Interrupt
CH1 - TIM Channel 1 Interrupt
CH2 - TIM Channel 2 Interrupt
CH3 - TIM Channel 3 Interrupt
TOV - Timer Overflow Interrupt
ERR - SCI Error Interrupt
TX - SCI Transmit Interrupt
RX - SCI Receive Interrupt
SCI - ADC Sequence Complete Interrupt
LINOT - LIN Driver Over-temperature Interrupt
HSOT - High Side Over-temperature Interrupt
LSOT - Low Side Over-temperature Interrupt
HOT - HSUP Over-temperature Interrupt
• Low Battery Interrupt
• Low Voltage Interrupt
• High Voltage Interrupt
• Voltage Regulator Over-voltage Interrupt
• Voltage Regulator High Temperature Interrupt
Table 88. ISR - Register Field Descriptions
11
Table 87. Interrupt Source Register (ISR)
MM912_634 Advance Information, Rev. 4.0
10
SCI
9
NOTE
RX
8
Description
TX
7
ERR
6
TOV
5
CH3
4
CH2
3
CH1
2
Access: User read
CH0
1
Interrupts
MCU
ANALOG
VSI
0
65