R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 106

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 3 MCU Operating Modes
3.2
The following registers are related to the operating mode setting.
• Mode control register (MDCR)
• System control register (SYSCR)
3.2.1
MDCR indicates the current operating mode. When MDCR is read, the states of signals input on
pins MD1 and MD0 are latched. The latch is released by a reset.
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Rev. 3.00 Mar. 14, 2006 Page 68 of 804
REJ09B0104-0300
Bit
15
14
13
12
11
10
9
8
Note: * Determined by pins MD1 and MD0.
Bit Name




MDS3
MDS2
MDS1
MDS0
Register Descriptions
Mode Control Register (MDCR)
15
—
—
R
R
0
7
0
Initial Value R/W
0
1
0
1
Undefined*
Undefined*
Undefined*
Undefined*
14
—
—
R
R
1
6
1
R
R
R
R
R
R
R
R
13
—
—
R
R
0
5
0
Descriptions
Reserved
These are read-only bits and cannot be modified.
Mode Select 3 to 0
These bits indicate the operating mode selected by the
mode pins (MD1 and MD0) (see table 3.2).
12
—
—
R
R
1
4
1
Undefined*
Undefined*
MDS3
11
—
R
R
3
Undefined*
Undefined*
MDS2
10
—
R
R
2
Undefined*
Undefined*
MDS1
—
R
R
9
1
Undefined*
Undefined*
MDS0
—
R
R
8
0