MCF5307FT90B Freescale Semiconductor, MCF5307FT90B Datasheet - Page 212
MCF5307FT90B
Manufacturer Part Number
MCF5307FT90B
Description
IC MPU 32BIT COLDF 90MHZ 208FQFP
Manufacturer
Freescale Semiconductor
Series
MCF530xr
Datasheets
1.MCF5307AI66B.pdf
(484 pages)
2.MCF5307AI66B.pdf
(16 pages)
3.MCF5307AI66B.pdf
(2 pages)
Specifications of MCF5307FT90B
Core Processor
Coldfire V3
Core Size
32-Bit
Speed
90MHz
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
0°C ~ 70°C
Package / Case
208-FQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
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I
8.5.5 I
In master-receive mode, reading the I2DR, Figure 8-9, allows a read to occur and initiates
next byte data receiving. In slave mode, the same function is available after it is addressed.
8.6 I
The following examples show programming for initialization, signalling START,
post-transfer software response, signalling STOP, and generating a repeated START.
8.6.1 Initialization Sequence
Before the interface can transfer serial data, registers must be initialized, as follows:
8.6.2 Generation of START
After completion of the initialization procedure, serial data can be transmitted by selecting
the master transmitter mode. On a multiple-master bus system, IBSR[IBB] must be tested
to determine whether the serial bus is free. If the bus is free (IBB = 0), the START signal
8-10
2
C Programming Examples
1. Set IFDR[IC] to obtain SCL frequency from the system bus clock. See
2. Update the IADR to define its slave address.
3. Set I2CR[IEN] to enable the I
4. Modify the I2CR to select master/slave mode, transmit/receive mode, and
Section 8.5.2, “I2C Frequency Divider Register (IFDR).”
interrupt-enable or not.
2
Address
C Programming Examples
2
Reset
Field
C Data I/O Register (I2DR)
R/W
If IBSR[IBB] when the I
following code sequence before proceeding with normal
initialization code. This issues a STOP command to the slave
device, placing it in idle state as if it were just power-cycled on.
I2CR = 0x0
I2CR = 0xA
dummy read of I2DR
IBSR = 0x0
I2CR = 0x0
7
Figure 8-9. I
Freescale Semiconductor, Inc.
For More Information On This Product,
6
Go to: www.freescale.com
MCF5307 User’s Manual
5
2
2
C bus interface system.
C Data I/O Register (I2DR)
2
C bus module is enabled, execute the
NOTE:
MBAR + 0x290
4
0000_0000
Read/Write
D
3
2
1
0
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