HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 238

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

6.2.15
BDRDH
BDRDL
Break data register D (BDRD) consists of two 16-bit readable/writable registers: break data
register DH (BDRDH) and break data register DL (BDRDL). BDRDH specifies the upper half
(bits 31 to 16) of the data used as a channel D break condition, and BDRDL specifies the lower
half (bits 15 to 0). The data bus connected to the X/Y memory can also be specified as a break
condition by making a setting in the XYED bit/XYSD bit in break bus cycle register D (BBRD).
When XYED = 1, the upper 16 bits (BDD31 to BDD16) of BDRD specify the X data bus, and the
lower 16 bits (BDD15 to BDD0) specify the Y data bus.
220
Initial value:
Initial value:
Initial value:
Initial value:
Break Data Register D (BDRD)
R/W:
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
Bit:
BDD31
BDD23
BDD15
BDD7
R/W
R/W
R/W
R/W
15
15
0
7
0
0
7
0
BDD30
BDD22
BDD14
BDD6
R/W
R/W
R/W
R/W
14
14
0
6
0
0
6
0
BDD29
BDD21
BDD13
BDD5
R/W
R/W
R/W
R/W
13
13
0
5
0
0
5
0
BDD28
BDD20
BDD12
BDD4
R/W
R/W
R/W
R/W
12
12
0
4
0
0
4
0
BDD27
BDD19
BDD11
BDD3
R/W
R/W
R/W
R/W
11
11
0
3
0
0
3
0
BDD26
BDD18
BDD10
BDD2
R/W
R/W
R/W
R/W
10
10
0
2
0
0
2
0
BDD25
BDD17
BDD9
BDD1
R/W
R/W
R/W
R/W
9
0
1
0
9
0
1
0
BDD24
BDD16
BDD8
BDD0
R/W
R/W
R/W
R/W
8
0
0
0
8
0
0
0