MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 92
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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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Bus Control and Input/Output (I/O)
6.3.9 Reduced Drive of I/O Lines
Read: Anytime, if register is in the map
Write: Once in normal modes; anytime, except the first time, in special modes
These bits select reduced drive for the associated port pins. This gives reduced power consumption and
reduced radio frequency interference (RFI) with a slight increase in transition time (depending on loading).
The reduced drive function is independent of which function is being used on a particular port. This
register is not in the map in peripheral mode.
RDPE — Reduced Drive of Port E Bit
RDPB — Reduced Drive of Port B Bit
RDPA — Reduced Drive of Port A Bit
92
1 = Reduced drive for all port E output pins
0 = Full drive for all port E output pins
1 = Reduced drive for all port B output pins
0 = Full drive for all port B output pins
1 = Reduced drive for all port A output pins
0 = Full drive for all port A output pins
Address: $000D
Reset:
Read:
Write:
Bit 7
0
0
Figure 6-9. Reduced Drive of I/O Lines (RDRIV)
= Unimplemented
6
0
0
M68HC12B Family Data Sheet, Rev. 9.1
5
0
0
4
0
0
RDPE
3
0
2
0
0
RDPB
1
0
Freescale Semiconductor
RDPA
Bit 0
0
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