MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 256

• 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

4.38.3.2.16
The CPMUAPITR register configures the trimming of the API time-out period.
Freescale Semiconductor
APICLK
APIES
APIEA
APIFE
Field
APIE
APIF
7
4
3
2
1
0
APIES=0
APIES=1
Autonomous Periodical Interrupt Clock Select Bit — Selects the clock source for the API. Writable only if APIFE = 0.
APICLK cannot be changed if APIFE is set by the same write operation.
0 Autonomous periodical interrupt clock used as source.
1 Bus Clock used as source.
Autonomous Periodical Interrupt External Select Bit — Selects the waveform at the external pin API_EXTCLK as shown
in
0 If APIEA and APIFE are set, at the external pin API_EXTCLK periodic high pulses are visible at the end of
1 If APIEA and APIFE are set, at the external pin API_EXTCLK a clock is visible with 2 times the selected API
Autonomous Periodical Interrupt External Access Enable Bit — If set, the waveform selected by bit APIES can be
accessed externally. See device level specification for connectivity.
0 Waveform selected by APIES can not be accessed externally.
1 Waveform selected by APIES can be accessed externally, if APIFE is set.
Autonomous Periodical Interrupt Feature Enable Bit — Enables the API feature and starts the API timer when set.
0 Autonomous periodical interrupt is disabled.
1 Autonomous periodical interrupt is enabled and timer starts running.
Autonomous Periodical Interrupt Enable Bit
0 API interrupt request is disabled.
1 API interrupt will be requested whenever APIF is set.
Autonomous Periodical Interrupt Flag — APIF is set to 1 when the in the API configured time has elapsed. This flag can
only be cleared by writing a 1. Writing a 0 has no effect. If enabled (APIE = 1), APIF causes an interrupt request.
0 API time-out has not yet occurred.
1 API time-out has occurred.
Figure
Autonomous Periodical Interrupt Trimming Register (CPMUAPITR)
every selected period with the size of half of the minimum period (APIR=0x0000 in
Period.
89. See device level specification for connectivity of API_EXTCLK pin.
Figure 89. Waveform selected on API_EXTCLK pin (APIEA=1, APIFE=1)
API period
Table 367. CPMUAPICTL Field Descriptions
MM912_634 Advance Information, Rev. 4.0
API min period / 2
Description
Table
371).
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