HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 240

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

XYED and XYSD in BBRD as shown below. BDMRDH and BDMRDL are initialized to H'0000
by a power-on reset; after a manual reset, their values are undefined.
BDMRD Configuration
XYED = 0
XYED = 1
Bits 31 to 0:
BDMDn
0
1
Notes: 1. n = 31 to 0
222
2. When including the data bus value in the break condition, specify the operand size.
3. When specifying byte size, and using odd-address data as a break condition, set the
value in bits 7 to 0 of BDRD and BDMRD. When using even-address data as a break
condition, set the value in bits 15 to 8. The unused 8 bits of these registers have no
effect on the break condition.
Data
X data
(when XYSD = 0)
Y data
(when XYSD = 1)
Description
Channel D break data bit BDDn is included in break condition
Channel D break data bit BDDn is masked, and not included in condition
Upper 16 Bits
(BDMD31 to BDMD16)
Upper 16 bits maskable
Maskable
—
Lower 16 Bits
(BDMD15 to BDMD0)
Lower 16 bits maskable
—
Maskable
(Initial value)