h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 165

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

5.2.7
ABRKCR is an 8-bit readable/writable register that performs address break control.
ABRKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7—Condition Match Flag (CMF): This is the address break source flag, used to indicate that
the address set by BAR has been prefetched. When the CMF flag and BIE flag are both set to 1, an
address break is requested.
Bits 6 to 1—Reserved: These bits cannot be modified and are always read as 0.
Bit 0—Break Interrupt Enable (BIE): Selects address break enabling or disabling.
Bit 7
CMF
0
1
Bit 0
BIE
0
1
Bit
Initial value
Read/Write
Address Break Control Register (ABRKCR)
Description
[Clearing condition]
When address break interrupt exception handling is executed
[Setting condition]
When address set by BARA to BARC is prefetched while BIE = 1
Description
Address break disabled
Address break enabled
CMF
R
7
0
—
—
6
0
—
—
5
0
—
—
4
0
Rev. 4.00 Jun 06, 2006 page 111 of 1004
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—
3
0
Section 5 Interrupt Controller
—
—
2
0
REJ09B0301-0400
—
—
1
0
(Initial value)
(Initial value)
R/W
BIE
0
0