LM3S8971 Luminary Micro, Inc, LM3S8971 Datasheet - Page 353
LM3S8971
Manufacturer Part Number
LM3S8971
Description
Lm3s8971 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S8971.pdf
(602 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM3S8971-EQC50-A2
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S8971-EQC50-A2T
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S8971-IBZ50-A2
Manufacturer:
Texas Instruments
Quantity:
10 000
Part Number:
LM3S8971-IBZ50-A2
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
LM3S8971-IBZ50-A2T
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S8971-IQC50-A2
Manufacturer:
TI
Quantity:
141
Company:
Part Number:
LM3S8971-IQC50-A2
Manufacturer:
Texas Instruments
Quantity:
10 000
- Current page: 353 of 602
- Download datasheet (7Mb)
14.4
Table 14-1. SSI Register Map
July 26, 2008
Offset
0x000
Name
SSICR0
4.
5.
As an example, assume the SSI must be configured to operate with the following parameters:
■
■
■
■
Assuming the system clock is 20 MHz, the bit rate calculation would be:
FSSIClk = FSysClk / (CPSDVSR * (1 + SCR))
1x106 = 20x106 / (CPSDVSR * (1 + SCR))
In this case, if CPSDVSR=2, SCR must be 9.
The configuration sequence would be as follows:
1.
2.
3.
4.
5.
Register Map
Table 14-1 on page 353 lists the SSI registers. The offset listed is a hexadecimal increment to the
register’s address, relative to that SSI module’s base address:
■
Note:
Master operation
Freescale SPI mode (SPO=1, SPH=1)
1 Mbps bit rate
8 data bits
SSI0: 0x4000.8000
Write the SSICR0 register with the following configuration:
■
■
■
■
Enable the SSI by setting the SSE bit in the SSICR1 register.
Ensure that the SSE bit in the SSICR1 register is disabled.
Write the SSICR1 register with a value of 0x0000.0000.
Write the SSICPSR register with a value of 0x0000.0002.
Write the SSICR0 register with a value of 0x0000.09C7.
The SSI is then enabled by setting the SSE bit in the SSICR1 register to 1.
Serial clock rate (SCR)
Desired clock phase/polarity, if using Freescale SPI mode (SPH and SPO)
The protocol mode: Freescale SPI, TI SSF, MICROWIRE (FRF)
The data size (DSS)
The SSI must be disabled (see the SSE bit in the SSICR1 register) before any of the control
registers are reprogrammed.
Type
R/W
0x0000.0000
Reset
Preliminary
Description
SSI Control 0
LM3S8971 Microcontroller
page
See
355
353
Related parts for LM3S8971
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Inductor: Molded: 10u: 10%: 30M: 7.9: 440m: Axial: T/R
Manufacturer:
Inductor Supply, Inc.
Part Number:
Description:
Molded Inductor
Manufacturer:
Inductor Supply, Inc.
Datasheet:
Part Number:
Description:
Cree Smd Led
Manufacturer:
Cree, Inc.
Datasheet:
Part Number:
Description:
Cree Smd Led
Manufacturer:
Cree, Inc.
Datasheet:
Part Number:
Description:
Specification For Cotco Led Lamp
Manufacturer:
Marktech Optoelectronics
Datasheet:
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: