參數(shù)資料
型號: QSMRM
英文描述: QSMRM QSM Queued Serial Module Reference Manual
中文描述: QSMRM QSM排隊(duì)串行模塊參考手冊
文件頁數(shù): 84/112頁
文件大?。?/td> 1496K
代理商: QSMRM
MOTOROLA
A-6
USING THE QSPI FOR ANALOG DATA AQUISITION
For More Information On This Product,
Go to: www.freescale.com
QSM
REFERENCE MANUAL
Figure A-6 QSPI Programmer's Model
Serial peripheral control register 3 (SPCR3) controls self-test and program debug
functions, which will not be discussed in this application note. The serial peripheral sta-
tus register (SPSR) contains two status fields of importance for this application. The
completed queue pointer (CPTQP) field contains the queue entry number that was
most recently completed. The QSPI finished flag (SPIF) bit is set when the CPTQP
matches the ENDQP, which indicates that the specified queue has been completed
and the QSPI has either shut down or wrapped to the designated point.
MSTR WOMQ
BITS
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CPOL
CPHA
BAUD
SPE
DSCKL
DTL
SPIFIE WREN WRTO
ENDQP
NEWQP
RECEIVE DATA (UP TO 16 BITS, LSB JUSTIFIED)
CONT
BITSE
DT
DSCK
PCS3
PCS2
PCS1
PCS0
CONT
BITSE
DT
DSCK
PCS3
PCS2
PCS1
PCS0
SPCR0
SPCR1
SPCR2
RECEIVE
RAM (X 16)
CONTROL
RAM (X 8)
NOTE: Shading denotes not used area.
SUPERVISOR DATA SPACE
SUPERVISOR
OR UNRESTRICTED
DATA SPACE
QMCR
SPCR0
SPCR1
SPCR2
RECEIVE RAM (16 WORDS)
TRANSMIT RAM (16 WORDS)
CONTROL RAM (16 BYTES)
MSB
QILR
QPAR
SPCR3
SPSR
QDDR
QPDR
QIVR
LSB
QSM MODULE CONTROL
(SHARED WITH SCI)
TRANSMIT DATA (UP TO 16 BITS, LSB JUSTIFIED)
TRANSMIT
RAM (X 16)
CPTQP
LOOPQ HMIE
HALT
SPIF
MODF HALTA
SPCR3/
SPSR
F
Freescale Semiconductor, Inc.
n
.
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