MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 93

• 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

Clock A is used as an input to an 8-bit down counter. This down counter loads a user programmable scale value from the scale
register (PWMSCLA). When the down counter reaches one, a pulse is output and the 8-bit counter is re-loaded. The output signal
from this circuit is further divided by two. This gives a greater range with only a slight reduction in granularity. Clock SA equals
clock A divided by two times the value in the PWMSCLA register.
Freescale Semiconductor
Prescale
M
U
X
M
U
X
Figure 23. PWM Clock Select Block Diagram
MM912_634 Advance Information, Rev. 4.0
8-Bit Down
PWMSCLB
8-Bit Down
PWMSCLA
Counter
Counter
Clock B/2, B/4, B/6,....B/512
Scale
Clock A/2, A/4, A/6,....A/512
Clock B
Clock A
Load
Load
Count = 1
Count = 1
DIV 2
DIV 2
Clock SB
Clock SA
PWM Control Module (PWM8B2C)
Clock Select
PCLK0
PCLK1
M
M
U
X
U
X
Clock to
PWM Ch 0
Clock to
PWM Ch 1
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