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H8SX/1663M 数据表(PDF) 113 Page - Renesas Technology Corp

部件名 H8SX/1663M
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/1663M 数据表(HTML) 113 Page - Renesas Technology Corp

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Section 3 MCU Operating Modes
Rev. 2.00 Sep. 24, 2008 Page 81 of 1468
REJ09B0412-0200
3.2
Register Descriptions
The following registers are related to the operating mode setting.
• Mode control register (MDCR)
• System control register (SYSCR)
3.2.1
Mode Control Register (MDCR)
MDCR indicates the current operating mode. When MDCR is read from, the states of signals
MD3 to MD0 are latched. Latching is released by a reset.
Bit
Bit Name
Initial Value
R/W
Note: * Determined by pins MD3 to MD0.
15
MDS7
Undefined*
14
1
R
13
0
R
12
1
R
11
MDS3
Undefined*
R
10
MDS2
Undefined*
R
9
MDS1
Undefined*
R
8
MDS0
Undefined*
R
Bit
Bit Name
Initial Value
R/W
7
Undefined*
R
6
1
R
5
0
R
4
1
R
3
Undefined*
R
2
Undefined*
R
1
Undefined*
R
0
Undefined*
R
Bit
Bit Name
Initial Value R/W
Descriptions
15
MDS7
Undefined*
R
This pin indicates a value set with the mode pin
(MD3)
When MDCR is read, the signal levels input on the
MD3 pin is latched into this bit. This latch is released
by a reset.
14
13
12
1
0
1
R
R
R
Reserved
These are read-only bits and cannot be modified.



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