LM3S1937-IBZ50 Luminary Micro, Inc, LM3S1937-IBZ50 Datasheet - Page 344
LM3S1937-IBZ50
Manufacturer Part Number
LM3S1937-IBZ50
Description
Lm3s1937 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S1937-IBZ50.pdf
(524 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM3S1937-IBZ50-A2
Manufacturer:
TI
Quantity:
269
Company:
Part Number:
LM3S1937-IBZ50-A2
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S1937-IBZ50-A2T
Manufacturer:
Texas Instruments
Quantity:
10 000
- Current page: 344 of 524
- Download datasheet (6Mb)
Synchronous Serial Interface (SSI)
344
Figure 14-7. Freescale SPI Frame Format (Single Transfer) with SPO=1 and SPH=0
SSIClk
SSIFss
Note:
Figure 14-8. Freescale SPI Frame Format (Continuous Transfer) with SPO=1 and SPH=0
SSITx/SSIRx
In this configuration, during idle periods:
■
■
■
■
■
If the SSI is enabled and there is valid data within the transmit FIFO, the start of transmission is
signified by the SSIFss master signal being driven Low, which causes slave data to be immediately
transferred onto the SSIRx line of the master. The master SSITx output pad is enabled.
One half period later, valid master data is transferred to the SSITx line. Now that both the master
and slave data have been set, the SSIClk master clock pin becomes Low after one further half
SSIClk period. This means that data is captured on the falling edges and propagated on the rising
edges of the SSIClk signal.
In the case of a single word transmission, after all bits of the data word are transferred, the SSIFss
line is returned to its idle High state one SSIClk period after the last bit has been captured.
However, in the case of continuous back-to-back transmissions, the SSIFss signal must be pulsed
High between each data word transfer. This is because the slave select pin freezes the data in its
serial peripheral register and does not allow it to be altered if the SPH bit is logic zero. Therefore,
the master device must raise the SSIFss pin of the slave device between each data transfer to
enable the serial peripheral data write. On completion of the continuous transfer, the SSIFss pin
is returned to its idle state one SSIClk period after the last bit has been captured.
SSIRx
SSITx
SSIClk is forced High
SSIFss is forced High
The transmit data line SSITx is arbitrarily forced Low
When the SSI is configured as a master, it enables the SSIClk pad
When the SSI is configured as a slave, it disables the SSIClk pad
SSIClk
SSIFss
Q is undefined.
LSB
MSB
MSB
MSB
Preliminary
4 to 16 bits
4 to 16 bits
LSB
LSB
LSB
MSB
Q
July 25, 2008
Related parts for LM3S1937-IBZ50
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Lm3s1110 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1133 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1138 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1150 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1162 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1165 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1332 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1435 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1439 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1512 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1538 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1601 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1607 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1608 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
Part Number:
Description:
Lm3s1620 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet: