MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 44

• Manufacturer Part Number: MC68340AG25E
• Description: IC MPU 32BIT 25MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG25E

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 25MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 25 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

IPIPE
DSO
2.11.3 Breakpoint (BKPT)
This pin functions as BKPT in normal operation and as DSCLK in background debug
mode.
BKPT
DSCLK
2.11.4 Freeze (FREEZE)
Assertion of this active-high output signal indicates that the CPU32 has acknowledged a
breakpoint and has initiated background mode operation.
2.12 DMA MODULE SIGNALS
The following signals are used by the direct memory access (DMA) controller module to
provide external handshake for either a source or destination. See Section 6 DMA
Module for additional information on these signals.
2.12.1 DMA Request ( DREQ2, DREQ1 )
This active-low input is asserted by a peripheral device to request an operand transfer
between that peripheral and memory. The assertion of DREQ starts the DMA process.
The assertion level in external burst mode is level sensitive; in external cycle steal mode,
it is falling-edge sensitive.
2.12.2 DMA Acknowledge (DACK2, DACK1)
This active-low output is asserted by the DMA to signal to a peripheral that an operand is
being transferred in response to a previous transfer request.
2.12.3 DMA Done ( DONE2, DONE1 )
This active-low bidirectional signal is asserted by the DMA or a peripheral device during
any DMA bus cycle to indicate that the last data transfer is being performed. DONE is an
active input in any mode. As an output, it is only active in external request mode. An
external pullup resistor is required even during operation in the internal request mode.
2-10
This active-low output signal is used to track movement of words through the instruction
pipeline.
This development serial output signal helps to provide serial communications for
background debug mode.
This active-low input signal is used to signal a hardware breakpoint to the CPU32.
This development serial clock input helps to provide serial communications for
background debug mode.
Freescale Semiconductor, Inc.
For More Information On This Product,
MC68340 USER’S MANUAL
Go to: www.freescale.com
MOTOROLA