Renesas SH7709S Manual Do Utilizador
Rev. 5.00, 09/03, page 159 of 760
7.2.7
Break Data Mask Register B (BDMRB)
BDMRB is a 32-bit read/write register. BDMRB specifies bits masked in the break data specified
by BDRB. A power-on reset initializes BDMRB to H'00000000.
by BDRB. A power-on reset initializes BDMRB to H'00000000.
Bit:
31
30
29
28
27
26
25
24
BDMB31 BDMB30 BDMB29 BDMB28 BDMB27 BDMB26 BDMB25 BDMB24
Initial value:
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
Bit:
23
22
21
20
19
18
17
16
BDMB23 BDMB22 BDMB21 BDMB20 BDMB19 BDMB18 BDMB17 BDMB16
Initial value:
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
Bit:
15
14
13
12
11
10
9
8
BDMB15 BDMB14 BDMB13 BDMB12 BDMB11 BDMB10 BDMB9
BDMB8
Initial value:
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
Bit:
7
6
5
4
3
2
1
0
BDMB7
BDMB6
BDMB5
BDMB4
BDMB3
BDMB2
BDMB1
BDMB0
Initial value:
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
Bits 31 to 0—Break Data Mask Register B31 to B0 (BDMB31 to BDMB0): Specifies bits in
the channel B break data bits specified by BDRB (BDB31—BDB0).
the channel B break data bits specified by BDRB (BDB31—BDB0).
Bits 31 to 0:
BDMBn
BDMBn
Description
0
Break data BDBn of channel B is included in the break condition
(Initial value)
1
Break data BDBn of channel B is masked and is not included in the break
condition
condition
n = 31 to 0
Notes: 1. Specify an operand size when including the value of the data bus in the break condition.
2. When a byte size is specified as a break condition, the same-byte data must be set in
bits 15 to 8 and bits 7 to 0 in BDRB for the break data.