MPC8544VTALF Freescale Semiconductor, MPC8544VTALF Datasheet - Page 466
![MPU POWERQUICC III 783-PBGA](/photos/37/62/376266/mpc8544e_image_sml.jpg)
MPC8544VTALF
Manufacturer Part Number
MPC8544VTALF
Description
MPU POWERQUICC III 783-PBGA
Manufacturer
Freescale Semiconductor
Datasheets
1.MPC8544VTALF.pdf
(117 pages)
2.MPC8544VTALF.pdf
(2 pages)
3.MPC8544VTALF.pdf
(1340 pages)
Specifications of MPC8544VTALF
Processor Type
MPC85xx PowerQUICC III 32-Bit
Speed
667MHz
Voltage
1V
Mounting Type
Surface Mount
Package / Case
783-FCPBGA
Processor Series
MPC85xx
Core
e500
Data Bus Width
32 bit
Maximum Clock Frequency
667 MHz
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Data Ram Size
32 KB
I/o Voltage
1.8 V, 3.3 V
Interface Type
I2C, HSSI, DUART
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MPC8544VTALF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MPC8544VTALFA
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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I
Figure 11-8
address components of the I
11.4.1.1
When the I
by sending a START condition. As shown in
transition of SDA while SCL is high. This condition denotes the beginning of a new data transfer. Each
data transfer can contain several bytes and awakens all slaves. The START condition is initiated by a
software write that sets I2CCR[MSTA].
11.4.1.2
The first byte of data is transferred by the master immediately after the START condition is the slave
address. This is a seven-bit calling address followed by a R/W bit, which indicates the direction of the data
being transferred to the slave. Each slave in the system has a unique address. In addition, when the I
module is operating as a master, it must not transmit an address that is the same as its slave address. An
I
undefined.
Only the slave with a calling address that matches the one transmitted by the master responds by returning
an acknowledge bit (pulling the SDA signal low at the 9th clock) as shown in
acknowledges the address, the master should generate a STOP condition or a repeated START condition.
When slave addressing is successful (and SCL returns to zero), the data transfer can proceed on a byte-to-byte
basis in the direction specified by the R/W bit sent by the calling master.
11-12
2
2
C Interfaces
C device cannot be master and slave at the same time; if this is attempted, the results are boundedly
SDA
SDA
SCL
SCL
START
START
2
C bus is not engaged (both SDA and SCL lines are at logic high), a master can initiate a transfer
shows the interaction of these four parts with the calling address, data byte, and new calling
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
A0 A1 A2 A3 A4 A5 A6 R/W
A0 A1 A2 A3 A4 A5 A6 R/W
START Condition
Slave Address Transmission
1
1
2
2
Calling address
Calling address
3
3
2
4
4
C protocol. The details of the protocol are described in the following sections.
Figure 11-8. I
5
5
6
6
7
7
Read/
write
Read/
write
2
C Interface Transaction Protocol
8
8
Figure
Ack
Ack
9
9
XX
11-8, a START condition is defined as a high-to-low
Repeated
START
XX
A0 A1 A2 A3 A4 A5 A6 R/W
D0 D1 D2 D3 D4 D5 D6 D7
1
1
2
2
New calling address
3
3
Data byte
4
4
5
5
Figure
6
6
7
7
Freescale Semiconductor
11-8. If no slave
8
8
No
ack
No
ack
9
9
STOP
STOP
2
C
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