LFEBS12UB Freescale Semiconductor, LFEBS12UB Datasheet - Page 662

• 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

Chapter 17 Periodic Interrupt Timer (S12PIT24B8CV2)
17.1.4
Figure 17-1
17.2
The PIT module has no external pins.
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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
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Bus Clock
Run mode
This is the basic mode of operation.
Wait mode
PIT operation in wait mode is controlled by the PITSWAI bit located in the PITCFLMT register.
In wait mode, if the bus clock is globally enabled and if the PITSWAI bit is clear, the PIT operates
like in run mode. In wait mode, if the PITSWAI bit is set, the PIT module is stalled.
Stop mode
In full stop mode or pseudo stop mode, the PIT module is stalled.
Freeze mode
PIT operation in freeze mode is controlled by the PITFRZ bit located in the PITCFLMT register.
In freeze mode, if the PITFRZ bit is clear, the PIT operates like in run mode. In freeze mode, if the
PITFRZ bit is set, the PIT module is stalled.
External Signal Description
Block Diagram
shows a block diagram of the PIT module.
Micro Timer 0
Micro Timer 1
8-Bit
8-Bit
MC9S12XE-Family Reference Manual , Rev. 1.23
Micro Time
Base 0
Micro
Time
Base 1
Figure 17-1. PIT24B8C Block Diagram
16-Bit Timer 0
16-Bit Timer 1
16-Bit Timer 2
16-Bit Timer 3
16-Bit Timer 4
16-Bit Timer 5
16-Bit Timer 6
16-Bit Timer 7
Time-Out 0
Time-Out 1
Time-Out 2
Time-Out 3
Time-Out 4
Time-Out 5
Time-Out 6
Time-Out 7
Interface
Interface
Interface
Interface
Interface
Interface
Interface
Interface
Freescale Semiconductor
Interrupt 0
Trigger 0
Interrupt 1
Trigger 1
Interrupt 2
Trigger 2
Interrupt 3
Trigger 3
Interrupt 4
Trigger 4
Interrupt 5
Trigger 5
Interrupt 6
Trigger 6
Interrupt 7
Trigger 7