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H8SX/1663R 数据表(PDF) 1155 Page - Renesas Technology Corp

部件名 H8SX/1663R
功能描述  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1504 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8SX/1663R 数据表(HTML) 1155 Page - Renesas Technology Corp

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Section 25 Flash Memory
Rev. 2.00 Sep. 24, 2008 Page 1123 of 1468
REJ09B0412-0200
(5)
Flash MAT Select Register (FMATS)
FMATS selects the user MAT or user boot MAT. Writing to FMATS should be done when a
program in the on-chip RAM is being executed.
7
MS7
0/1*
R/W
6
MS6
0
R/W
5
MS5
0/1*
R/W
4
MS4
0
R/W
3
MS3
0/1*
R/W
0
MS0
0
R/W
2
MS2
0
R/W
1
MS1
0/1*
R/W
Bit
Bit Name
Initial Value
R/W
Note: * This bit is set to 1 in user boot mode, otherwise cleared to 0.
Bit
Bit Name
Initial
Value
R/W
Description
7
6
5
4
3
2
1
0
MS7
MS6
MS5
MS4
MS3
MS2
MS1
MS0
0/1*
0
0/1*
0
0/1*
0
0/1*
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
MAT Select
The memory MATs can be switched by writing a value
to FMATS.
When H'AA is written to FMATS, the user boot MAT is
selected. When a value other than H'AA is written, the
user MAT is selected. Switch the MATs following the
memory MAT switching procedure in section 25.11,
Switching between User MAT and User Boot MAT. The
user boot MAT cannot be selected by FMATS in user
programming mode. The user boot MAT can be
selected in boot mode or programmer mode.
H'AA: The user boot MAT is selected. (The user MAT is
selected when FMATS is a value other than
H'AA.)
(Initial value when initiated in user boot mode.)
H'00: The user MAT is selected.
(Initial value when initiated in a mode except for
user boot mode.)
Note:
*
This bit is set to 1 in user boot mode, otherwise cleared to 0.



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