HD6417606 RENESAS [Renesas Technology Corp], HD6417606 Datasheet - Page 415
HD6417606
Manufacturer Part Number
HD6417606
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417606.pdf
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16.2.12 Branch Destination Register (BRDR)
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.
Bit
31
30 to 28
27 to 0
Bit Name
DVF
—
BDA27 to
BDA0
Initial
Value
0
All 0
Undefined
R/W
R
R
R
Description
Indicates whether or not the branch source address is
stored. When a branch is made, this flag is set to 1. This
flag is cleared to 0 by one of the following conditions:
when this flag is read from this register, when PC trace
is enabled, and when a power-on reset is generated.
0: The value of BRDR register is invalid
1: The value of BRDR register is valid
These bits are always read as 0. The write value should
always be 0.
Store bits 27 to 0 of the branch destination address.
BRDR Valid Flag
Reserved
Branch Destination Address
Rev. 4.00 Sep. 13, 2007 Page 389 of 502
Section 16 User Break Controller (UBC)
REJ09B0239-0400
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