MPC8533EVTARJA Freescale Semiconductor, MPC8533EVTARJA Datasheet - Page 474
MPC8533EVTARJA
Manufacturer Part Number
MPC8533EVTARJA
Description
MPU POWERQUICC 783-PBGA
Manufacturer
Freescale Semiconductor
Datasheets
1.MPC8533VTALF.pdf
(112 pages)
2.MPC8533VTALF.pdf
(2 pages)
3.MPC8533VTALF.pdf
(16 pages)
4.MPC8533VTALF.pdf
(1332 pages)
Specifications of MPC8533EVTARJA
Processor Type
MPC85xx PowerQUICC III 32-Bit
Speed
1.067GHz
Voltage
0.95 V ~ 1.05 V
Mounting Type
Surface Mount
Package / Case
783-BBGA, FCBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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I
11.5.2
After initialization, the following sequence can be used to generate START:
The scenario above assumes that the I
an I
I
one interrupt, which is sourced by the dual I
11.5.3
Transmission or reception of a byte automatically sets the data transferring bit (I2CSR[MCF]), which
indicates that one byte has been transferred. The I
is generated to the processor if the interrupt function is enabled during the initialization sequence
(I2CCR[MIEN] is set). In the interrupt handler, software must take the following steps:
When an interrupt occurs at the end of the address cycle, the master remains in transmit mode. If master
receive mode is required, I2CCR[MTX] must be toggled at this stage. See
Service Routine Flowchart.”
If the interrupt function is disabled, software can service the I2CDR in the main program by monitoring
I2CSR[MIF]. In this case, I2CSR[MIF] must be polled rather than I2CSR[MCF] because MCF behaves
differently when arbitration is lost. Note that interrupt or other bus conditions may be detected before the
I
may be needed in order to give the I
During slave-mode address cycles (I2CSR[MAAS] is set), I2CSR[SRW] should be read to determine the
direction of the subsequent transfer and I2CCR[MTX] should be programmed accordingly. For
slave-mode data cycles (MAAS is cleared), I2CSR[SRW] is not valid and I2CCR[MTX] must be read to
determine the direction of the current transfer. See
for more details.
11-22
2
2
2
C Interfaces
C interrupt handler can handle the interrupt. Note that the interrupts for I
C signals have time to settle. Thus, when polling I2CSR[MIF] (or any other I2CSR bits), software delays
4. Modify I2CCR to select master/slave mode, transmit/receive mode, and interrupt-enable or
5. Set the I2CCR[MEN] to enable the I
1. If the device is connected to a multimaster I
2. Select master mode (set I2CCR[MSTA]) to transmit serial data and select transmit mode (set
3. Write the slave address being called into I2CDR. The data written to I2CDR[0–6] comprises the
2
1. Clear I2CSR[MIF]
2. Read the contents of the I
C interrupt is generated (provided interrupt reporting is enabled with I2CCR[MIEN] =1) so that the
disable.
whether the serial bus is free (I2CSR[MBB] = 0) before switching to master mode.
I2CCR[MTX]) for the address cycle.
slave calling address. I2CCR[MTX] indicates the direction of transfer (transmit/receive) required
from the slave.
mode. Note that this causes I2CSR[MCF] to be cleared. See
Routine Flowchart.”
Generation of START
Post-Transfer Software Response
MPC8533E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
2
C data register (I2CDR) in receive mode or write to I2CDR in transmit
2
C signals sufficient time to settle.
2
C interrupt bit (I2CSR[MIF]) is cleared. If MIF is set at any time,
2
2
C controller.
C interface.
2
C interrupt bit (I2CSR[MIF]) is also set and an interrupt
Section 11.5.8, “Interrupt Service Routine Flowchart,”
2
C system, test the state of I2CSR[MBB] to check
Section 11.5.8, “Interrupt Service
2
C1 and I
Section 11.5.8, “Interrupt
2
C2 are combined into
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