MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 303
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MC68HC912B32VFU8
Manufacturer Part Number
MC68HC912B32VFU8
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC912B32VFU8.pdf
(334 pages)
Specifications of MC68HC912B32VFU8
Cpu Family
HC12
Device Core Size
16b
Frequency (max)
8MHz
Interface Type
SCI/SPI
Program Memory Type
EPROM
Program Memory Size
32KB
Total Internal Ram Size
1KB
# I/os (max)
63
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC912B32VFU8
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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BK1RW — R/W Compare Value Bit
BK0RWE — R/W Compare Enable Bit
BK0RW — R/W Compare Value Bit
18.4.2.3 Breakpoint Address Register High
These bits are used to compare against the most significant byte of the address bus.
18.4.2.4 Breakpoint Address Register Low
These bits are used to compare against the least significant byte of the address bus. These bits may be
excluded from being used in the match if BK0ALE = 0.
Freescale Semiconductor
When BK1RWE = 1, this bit determines the type of bus cycle to match.
Enables the comparison of the R/W signal to further specify what causes a match. This bit is not useful
in program breakpoints.
When BK0RWE = 1, this bit determines the type of bus cycle to match.
0 = A write cycle is matched.
1 = A read cycle is matched.
0 = R/W is not used in the comparisons.
1 = R/W is used in comparisons.
0 = Write cycle is matched.
1 = Read cycle is matched.
Power on reset:
Power on reset:
BK1RWE BK1RW BK0RWE BK0RW
—
—
—
0
1
1
Address: $0022
Address: $0023
Read:
Read:
Write:
Write:
Figure 18-12. Breakpoint Address Register High (BRKAH)
Figure 18-13. Breakpoint Address Register Low (BRKAL)
—
—
—
X
0
1
Bit 15
Bit 7
Bit 7
Bit 7
0
0
Table 18-9. Breakpoint Read/Write Control
—
—
—
0
1
1
M68HC12B Family Data Sheet, Rev. 9.1
14
6
0
6
6
0
—
—
—
X
0
1
13
5
0
5
5
0
R/W is don’t care for full mode or dual mode BKP0
R/W is write for full mode or dual mode BKP0
R/W is read for full mode or dual mode BKP0
R/W is don’t care for dual mode BKP1
R/W is write for dual mode BKP1
R/W is read for dual mode BKP1
12
4
0
4
4
0
Read/Write Selected
11
3
0
3
3
0
10
2
0
2
2
0
1
9
0
1
1
0
Bit 0
Bit 8
Bit 0
Bit 0
0
0
Breakpoints
303
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