r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 169

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

7.3.14
BRDR is a 32-bit read-only register. BRDR stores bits 27 to 0 in the address of the branch
destination instruction. BRDR has the flag bit that is set to 1 when a branch occurs. This flag bit is
cleared to 0 when BRDR is read, the setting to enable PC trace is made, or BRDR is initialized by
a power-on reset. Other bits are not initialized by a power-on reset. The four BRDR registers have
a queue structure and a stored register is shifted at every branch.
Initial value:
Initial value:
Bit
31
30 to 28
27 to 0
R/W:
R/W:
Bit:
Bit:
BDA15 BDA14 BDA13 BDA12 BDA11 BDA10 BDA9
Branch Destination Register (BRDR)
DVF
31
15
R
R
Bit Name
DVF

BDA27 to
BDA0
0
-
30
14
R
R
0
-
-
29
13
R
R
0
-
-
Initial
Value
0
All 0
Undefined R
28
12
R
R
0
-
-
BDA27 BDA26 BDA25 BDA24 BDA23 BDA22 BDA21 BDA20 BDA19 BDA18 BDA17 BDA16
27
11
R
R
-
-
R/W
R
R
26
10
R
R
-
-
Description
BRDR Valid Flag
Indicates whether a branch destination address is
stored. This flag bit is set to 1 when a branch occurs.
This flag is cleared to 0 when BRDR is read, the
setting to enable PC trace is made, or BRDR is
initialized by a power-on reset.
0: The value of BRDR register is invalid
1: The value of BRDR register is valid
Reserved
These bits are always read as 0. The write value
should always be 0.
Branch Destination Address
Store bits 27 to 0 of the branch destination address.
25
R
R
9
-
-
BDA8
24
R
R
8
-
-
BDA7
23
R
R
7
-
-
BDA6
Rev. 1.00 Sep. 21, 2007 Page 143 of 1124
22
R
R
6
-
-
Section 7 User Break Controller (UBC)
BDA5
21
R
R
5
-
-
BDA4
20
R
R
4
-
-
BDA3
19
R
R
3
-
-
REJ09B0402-0100
BDA2
18
R
R
2
-
-
BDA1
17
R
R
1
-
-
BDA0
16
R
R
0
-
-