SH7101 Datasheet, PDF (123/486 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

7. Bus State Controller (BSC)
7.5 Register Description
7.5.1 Bus Control Register 1 (BCR1)
BCR1 is a 16-bit readable/writable register that enables access to the MTU control registers.
Initial
Bit Bit Name Value R/W
15
⎯
0
R
14
⎯
1
R
13
MTURWE 1
R/W
12 to 8 ⎯
7 to 4 ⎯
3 to 0 ⎯
All 0
R
All 0
R
All 1
R
Description
Reserved
These bits are always read as 0 and should always be
written to 0.
Reserved
These bits are always read as 1 and should always be
written to 1.
MTU Read/Write Enable
This bit enables MTU control register access. For
details, refer to MTU section.
0: MTU control register access is disabled
1: MTU control register access is enabled
Reserved
These bits are always read as 0 and the write value
should always be 0.
Reserved
These bits are always read as 0 and the write value
should always be 0.
Reserved
These bits are always read as 1 and the write value
should always be 1.
Rev.2.00 Sep. 27, 2007 Page 89 of 448
REJ09B0394-0200