MCF5307CFT66B Freescale Semiconductor, MCF5307CFT66B Datasheet - Page 146
MCF5307CFT66B
Manufacturer Part Number
MCF5307CFT66B
Description
IC MPU 32BIT 66MHZ COLDF 208FQFP
Manufacturer
Freescale Semiconductor
Series
MCF530xr
Datasheets
1.MCF5307AI66B.pdf
(484 pages)
2.MCF5307AI66B.pdf
(16 pages)
3.MCF5307AI66B.pdf
(2 pages)
Specifications of MCF5307CFT66B
Core Processor
Coldfire V3
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, I²C, UART/USART
Peripherals
DMA, POR, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-FQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Part Number:
MCF5307CFT66B
Manufacturer:
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MCF5307CFT66B
Manufacturer:
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Background Debug Mode (BDM)
DSI must meet the required input setup and hold timings and the DSO is specified as a delay
relative to the rising edge of the processor clock. See Table 5-1. The development system
serves as the serial communication channel master and must generate DSCLK.
The serial channel operates at a frequency from DC to 1/5 of the processor frequency. The
channel uses full-duplex mode, where data is sent and received simultaneously by both
master and slave devices. The transmission consists of 17-bit packets composed of a
status/control bit and a 16-bit data word. As shown in Figure 5-13, all state transitions are
enabled on a rising edge of the processor clock when DSCLK is high; that is, DSI is
sampled and DSO is driven.
DSCLK and DSI are synchronized inputs. DSCLK acts as a pseudo clock enable and is
sampled on the rising edge of the processor CLK as well as the DSI. DSO is delayed from
the DSCLK-enabled CLK rising edge (registered after a BDM state machine state change).
All events in the debug module’s serial state machine are based on the processor clock
rising edge. DSCLK must also be sampled low (on a positive edge of CLK) between each
bit exchange. The MSB is transferred first. Because DSO changes state based on an
internally-recognized rising edge of DSCLK, DSDO cannot be used to indicate the start of
a serial transfer. The development system must count clock cycles in a given transfer.
C1–C4 are described as follows:
5-18
• C1—First synchronization cycle for DSI (DSCLK is high).
• C2—Second synchronization cycle for DSI (DSCLK is high).
• C3—BDM state machine changes state depending upon DSI and whether the entire
• C4—DSO changes to next value.
BDM State
CPU CLK
PSTCLK
input data transfer has been transmitted.
Machine
DSCLK
DSO
DSI
A not-ready response can be ignored except during a
memory-referencing cycle. Otherwise, the debug module can
accept a new serial transfer after 32 processor clock periods.
Figure 5-13. BDM Serial Interface Timing
Freescale Semiconductor, Inc.
For More Information On This Product,
Current State
Past
Go to: www.freescale.com
C1
Current
MCF5307 User’s Manual
C2
NOTE:
C3
C4
Next State
Current
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