DEMO9S12XEP100 Freescale Semiconductor, DEMO9S12XEP100 Datasheet - Page 775
DEMO9S12XEP100
Manufacturer Part Number
DEMO9S12XEP100
Description
BOARD DEMO FOR MC9S12XEP100
Manufacturer
Freescale Semiconductor
Type
MCUr
Datasheet
1.EVB9S12XEP100.pdf
(1328 pages)
Specifications of DEMO9S12XEP100
Contents
Board, Cables, CD
Processor To Be Evaluated
MC9S12XEP100
Data Bus Width
16 bit
Interface Type
RS-232
Silicon Manufacturer
Freescale
Core Architecture
S12
Core Sub-architecture
S12
Silicon Core Number
MC9S12
Silicon Family Name
S12XE
Rohs Compliant
Yes
For Use With/related Products
MC9S12XEP100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DEMO9S12XEP100
Manufacturer:
PANASONIC
Quantity:
46 000
Company:
Part Number:
DEMO9S12XEP100
Manufacturer:
Freescale Semiconductor
Quantity:
135
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21.4
The SPI module allows a duplex, synchronous, serial communication between the MCU and peripheral
devices. Software can poll the SPI status flags or SPI operation can be interrupt driven.
The SPI system is enabled by setting the SPI enable (SPE) bit in SPI control register 1. While SPE is set,
the four associated SPI port pins are dedicated to the SPI function as:
Freescale Semiconductor
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
•
•
•
•
Receive Shift Register
Receive Shift Register
Slave select (SS)
Serial clock (SCK)
Master out/slave in (MOSI)
Master in/slave out (MISO)
SPI Data Register
SPI Data Register
Functional Description
SPIF
SPIF
Data A Received
Data A Received
Figure 21-10. Reception with SPIF serviced too late
Figure 21-9. Reception with SPIF serviced in Time
= Unspecified
= Unspecified
MC9S12XE-Family Reference Manual Rev. 1.23
Data A
Data A
Data A
Data A
= Reception in progress
= Reception in progress
Data B Received
Data B Received
Data B
Data B
Chapter 21 Serial Peripheral Interface (S12SPIV5)
SPIF Serviced
Data B Lost
SPIF Serviced
Data B
Data C Received
Data C Received
Data C
Data C
Data C
Data C
775
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