MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 226
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)
15.7.4.7 Invalid Active Bit
In
between the passive-to-active transition beginning the current data bit (or symbol) and A, the current bit
would be invalid.
15.7.4.8 Valid Active Logic 1
In
between A and B, the current bit would be considered a logic 1.
15.7.4.9 Valid Active Logic 0
In
between B and C, the current bit would be considered a logic 0.
15.7.4.10 Valid SOF Symbol
In
between C and D, the current symbol would be considered a valid SOF symbol.
226
Figure
Figure
Figure
Figure
15-8(1), if the active-to-passive received transition beginning the next data bit (or symbol) occurs
15-8(2), if the active-to-passive received transition beginning the next data bit (or symbol) occurs
15-8(3), if the active-to-passive received transition beginning the next data bit (or symbol) occurs
15-8(4), if the active-to-passive received transition beginning the next data bit (or symbol) occurs
PASSIVE
PASSIVE
PASSIVE
PASSIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Figure 15-8. J1850 VPW Received Active Symbol Times
64 µs
A
A
M68HC12B Family Data Sheet, Rev. 9.1
128 µs
200 µs
B
B
C
C
D
(1) INVALID ACTIVE BIT
(2) VALID ACTIVE LOGIC 1
(3) VALID ACTIVE LOGIC 0
(4) VALID SOF SYMBOL
Freescale Semiconductor
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