LFEBS12UB Freescale Semiconductor, LFEBS12UB Datasheet - Page 815

• Manufacturer Part Number: LFEBS12UB
• Description: KIT STUDENT LEARNING S12 DG128
• Manufacturer: Freescale Semiconductor

Specifications of LFEBS12UB

• Architecture: 8/16-bit
• Code Gen Tools Included: Code Warrior
• Silicon Manufacturer: Freescale
• Core Architecture: S12
• Core Sub-architecture: S12
• Silicon Core Number: MC9S12
• Silicon Family Name: S12D
• Kit Contents: HCS12 DG128 Learning Kit
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22.4.6
Setting the PAMOD bit configures the pulse accumulator for gated time accumulation operation. An active
level on the PACNT input pin enables a divided-by-64 clock to drive the pulse accumulator. The PEDGE
bit selects low levels or high levels to enable the divided-by-64 clock.
The trailing edge of the active level at the IOC7 pin sets the PAIF. The PAI bit enables the PAIF flag to
generate interrupt requests.
The pulse accumulator counter register reflect the number of pulses from the divided-by-64 clock since the
last reset.
22.5
The reset state of each individual bit is listed within
which details the registers and their bit fields.
22.6
This section describes interrupts originated by the TIM16B8CV2 block.
generated by the TIM16B8CV2 to communicate with the MCU.
The TIM16B8CV2 uses a total of 11 interrupt vectors. The interrupt vector offsets and interrupt numbers
are chip dependent.
Freescale Semiconductor
1. Chip Dependent.
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Interrupt
C[7:0]F
PAOVF
PAOVI
TOF
Resets
Interrupts
Gated Time Accumulation Mode
The pulse accumulator counter can operate in event counter mode even
when the timer enable bit, TEN, is clear.
The timer prescaler generates the divided-by-64 clock. If the timer is not
active, there is no divided-by-64 clock.
Offset
(1)
—
—
—
—
Vector
—
—
—
—
1
MC9S12XE-Family Reference Manual Rev. 1.23
Table 22-25. TIM16B8CV1 Interrupts
Priority
—
—
—
—
1
Timer Channel 7–0
Pulse Accumulator
Pulse Accumulator
Timer Overflow
NOTE
NOTE
Section 22.3, “Memory Map and Register Definition”
Overflow
Source
Input
Chapter 22 Timer Module (TIM16B8CV2) Block Description
Active high pulse accumulator input interrupt
Active high timer channel interrupts 7–0
Pulse accumulator overflow interrupt
Table 22-25
Timer Overflow interrupt
Description
lists the interrupts
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