MC68F375BGMZP33 Freescale Semiconductor, MC68F375BGMZP33 Datasheet - Page 299

• Manufacturer Part Number: MC68F375BGMZP33
• Description: IC MPU 32BIT 33MHZ 217-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68F375BGMZP33

• Processor Type: M683xx 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 217-PBGA
• Processor Series: M683xx
• Core: CPU32
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 10 KB
• Interface Type: SPI, SCI, CAN
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 16
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: No

6.9.7 Example SCI Transmit for 25 Data Bytes
MC68F375
REFERENCE MANUAL
3
Figure 6-16
1
QTSZ=1000 (9 Data Frames)
QTPNT
QTSZ=1111 (16 Data Frames)
QTPNT
0000
0111
1000
1111
Transmit Queue Enabled
0000
0111
1000
1111
QBHE Interrupt Received
(Wrap Occurred)
Write SCTQ[8]
Clear QBHE
Load QPEND with QTSZ
Clear QTWE
Reset QTPNT
Figure 6-16 Queue Transmit Example for 25 Data Frames
SCTQ[0]
SCTQ[7]
SCTQ[8]
SCTQ[15]
SCTQ[7]
SCTQ[8]
SCTQ[15]
SCTQ[0]
below is an example of a transmission of 25 data frames.
Freescale Semiconductor, Inc.
QUEUED SERIAL MULTI-CHANNEL MODULE
QPEND
1000
0001
0000
QPEND
1111
1000
0111
0000
For More Information On This Product,
Go to: www.freescale.com
2
4
QTSZ=1111 (16 Data Frames)
QTPNT
QTSZ=1000 (9 Data Frames)
QTPNT
0000
0111
1000
1001
1111
0000
0111
1000
1111
Rev. 25 June 03
QTHE Interrupt Received
QTHE Interrupt Received
Write QTSZ = 8 (16 + 9 = 25)
Write SCTQ [0:7] for 8 More Data Frames
Set QTWE
Clear QTHE
SCTQ[0]
SCTQ[7]
SCTQ[8]
SCTQ[15]
SCTQ[7]
SCTQ[8]
SCTQ[15]
SCTQ[0]
QPEND
QPEND
1000
0001
0000
1111
1111
1000
0111
0000
Data to be Transferred
Available Register Space
MOTOROLA
6-65