MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 224
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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Byte Data Link Communications (BDLC)
15.7.4.1 Invalid Passive Bit
See
occurs between the active-to-passive transition beginning the current data bit (or symbol) and A, the
current bit would be invalid.
15.7.4.2 Valid Passive Logic 0
See
occurs between A and B, the current bit would be considered a logic 0.
15.7.4.3 Valid Passive Logic 1
See
occurs between B and C, the current bit would be considered a logic 1.
15.7.4.4 Valid EOD Symbol
See
occurs between C and D, the current symbol would be considered a valid end-of-data symbol (EOD).
224
Figure
Figure
Figure
Figure
15-6(1). If the passive-to-active received transition beginning the next data bit or symbol
15-6(2). If the passive-to-active received transition beginning the next data bit (or symbol)
15-6(3). If the passive-to-active received transition beginning the next data bit (or symbol)
15-6(4). If the passive-to-active received transition beginning the next data bit (or symbol)
ACTIVE
PASSIVE
ACTIVE
PASSIVE
ACTIVE
PASSIVE
ACTIVE
PASSIVE
Figure 15-6. J1850 VPW Received Passive Symbol Times
64 µs
A
A
M68HC12B Family Data Sheet, Rev. 9.1
128 µs
200 µs
B
B
C
C
D
(1) INVALID PASSIVE BIT
(2) VALID PASSIVE LOGIC 0
(3) VALID PASSIVE LOGIC 1
(4) VALID EOD SYMBOL
Freescale Semiconductor
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