SH7080_09 Datasheet, PDF (202/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 7 User Break Controller (UBC)
7.3.4 Break Data Register A (BDRA) (Only in F-ZTAT Version)
BDRA is a 32-bit readable/writable register. The control bits CDA1 and CDA0 in BBRA select
one of two data buses for break condition A.
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
BDA31 BDA30 BDA29 BDA28 BDA27 BDA26 BDA25 BDA24 BDA23 BDA22 BDA21 BDA20 BDA19 BDA18 BDA17 BDA16
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
BDA15 BDA14 BDA13 BDA12 BDA11 BDA10 BDA9 BDA8 BDA7 BDA6 BDA5 BDA4 BDA3 BDA2 BDA1 BDA0
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial
Bit
Bit Name Value R/W Description
31 to 0 BDA31 to All 0
BDA0
R/W Break Data Bit A
Stores data which specifies a break condition in channel
A.
If the I bus is selected in BBRA, the break data on IDB is
set in BDA31 to BDA0.
If the L bus is selected in BBRA, the break data on LDB
is set in BDA31 to BDA0.
Notes: 1. Specify an operand size when including the value of the data bus in the break condition.
2. When the byte size is selected as a break condition, the same byte data must be set in
bits 15 to 8 and 7 to 0 in BDRA as the break data.
Rev. 4.00 Dec. 15, 2009 Page 142 of 1558
REJ09B0181-0400