MC68332ACPV25 Freescale Semiconductor, MC68332ACPV25 Datasheet - Page 52

• Manufacturer Part Number: MC68332ACPV25
• Description: IC MCU 32-BIT 25MHZ A MASK
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68332ACPV25

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Type: ROMless
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: Q1501580

5 Time Processor Unit
I M B
5.1 MC68332 and MC68332A Time Functions
5.1.1 Discrete Input/Output (DIO)
52
MOTOROLA
The time processor unit (TPU) provides optimum performance in controlling time-related activity. The
TPU contains a dedicated execution unit, a tri-level prioritized scheduler, data storage RAM, dual-time
bases, and microcode ROM. The TPU controls 16 independent, orthogonal channels, each with an as-
sociated I/O pin, and is capable of performing any microcoded time function. Each channel contains
dedicated hardware that allows input or output events to occur simultaneously on all channels.
The following paragraphs describe factory-programmed time functions implemented in standard and
enhanced standard TPU microcode ROM. A complete description of the functions is beyond the scope
of this summary. Refer to Using the TPU Function Library and TPU Emulation Mode (TPUPN00/D) as
well as other TPU programming notes for more information about specific functions.
When a pin is used as a discrete input, a parameter indicates the current input level and the previous
15 levels of a pin. Bit 15, the most significant bit of the parameter, indicates the most recent state. Bit
14 indicates the next most recent state, and so on. The programmer can choose one of the three fol-
lowing conditions to update the parameter: 1) when a transition occurs, 2) when the CPU makes a re-
quest, or 3) when a rate specified in another parameter is matched. When a pin is used as a discrete
output, it is set high or low only upon request by the CPU.
SUPPORT AND TEST
CONFIGURATION
DEVELOPMENT
INTERFACE
PARAMETER
CHANNEL
CONTROL
SYSTEM
HOST
RAM
DATA
Freescale Semiconductor, Inc.
For More Information On This Product,
CONTROL
DATA
Figure 12 TPU Block Diagram
Go to: www.freescale.com
MICROENGINE
SCHEDULER
EXECUTION
CONTROL
STORE
UNIT
T2CLK
CONTROL AND DATA
SERVICE REQUESTS
TCR1
TCR2
CHANNELS
CHANNEL 15
CHANNEL 0
CHANNEL 1
TIMER
MC68332TS/D
MC68332
TPU BLOCK
PINS