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DSP56857 bảng dữ liệu(PDF) 241 Page - Freescale Semiconductor, Inc

tên linh kiện DSP56857
Giải thích chi tiết về linh kiện  Digitial Signal Controller
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DSP56857 bảng dữ liệu(HTML) 241 Page - Freescale Semiconductor, Inc

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Module Memory Maps
Serial Communications Interface (SCI), Rev. 4
Freescale Semiconductor
10-5
10.5 Module Memory Maps
The five accessible registers on the SCI0 are listed in Table 10-2 while the five accessible registers
on the SCI1 are listed in Table 10-3.
Table 10-2. SCI0 Module Memory Map (SCI0_BASE = $1FFFE0)
Address Offset
Register Acronym
Register Name
Access Type
Chapter Location
Base + $0
SCI_0_BR
SCI Baud Rate Register
Read/Write
Section 10.9.1
Base + $1
SCI_0_CR
SCI Control Register
Read/Write
Section 10.9.2
Base + $2
SCI_0_CR2
SCI Control Register 2
Read/Write
Section 10.9.3
Base + $3
SCI_0_SR
SCI Status Register
Read Only
Section 10.9.4
Base + $4
SCI_0_DR
SCI Data Register
Read/Write
Section 10.9.5
Table 10-3. SCI1 Module Memory Map (SCI1_BASE = $1FFDF8)
Address Offset
Register Acronym
Register Name
Access Type
Chapter Location
Base + $0
SCI_1_BR
SCI Baud Rate Register
Read/Write
Section 10.9.1
Base + $1
SCI_1_CR
SCI Control Register
Read/Write
Section 10.9.2
Base + $2
SCI_1_CR2
SCI Control Register 2
Read/Write
Section 10.9.3
Base + $3
SCI_1_SR
SCI Status Register
Read Only
Section 10.9.4
Base + $4
SCI_1_DR
SCI Data Register
Read/Write
Section 10.9.5
Add.
Offset
Register Name
15
14
13
12
11
10
9876543
21
0
$0
SCIBR
R
0
0
0
SBR
W
$1
SCICR
R
LOOP SWAI RSRC
M
WAKE
POL
PE
PT
TEIE
TIIE
RFIE REIE
TE
RE
RWU SBK
W
$2
SCICR2
R
0
0
0
0
0
0
0
0
0
0
0
0
0
RIIE
TDE
RDE
W
$3
SCISR
R TDRE TIDLE RDRF RIDLE
OR
NF
FE
PF
0
0
0
0
0
0
0
RAF
W
$4
SCIDR
R
0
0
0
0
0
0
0
RECEIVE DATA
W
TRANSMIT DATA
R
0
Read as 0
W
Reserved
Figure 10-2. SCI Register Map Summary



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