MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 91

MC68HC912B32VFU8

Manufacturer Part Number
MC68HC912B32VFU8
Description
Manufacturer
Freescale Semiconductor
Datasheet

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
6.3.8 Pullup Control Register
Read: Anytime, if register is in the map
Write: Anytime, if register is in the map
These bits select pullup resistors for any pin in the corresponding port that is currently configured as an
input. This register is not in the map in peripheral mode.
PUPE — Pullup Port E Enable Bit
PUPB — Pullup Port B Enable Bit
PUPA — Pullup Port A Enable Bit
Freescale Semiconductor
Pin PE1 always has a pullup. Pins PE6, PE5, and PE4 never have pullups.
This bit has no effect if port B is used as part of the address/data bus (pullups are inactive).
This bit has no effect, if port A is used as part of the address/data bus (pullups are inactive).
1 = Enable port E pullups on PE7, PE3, PE2, PE1, and PE0
0 = Disable port E pullups on PE7, PE3, PE2, PE1, and PE0
1 = Enable pullups for all port B input pins
0 = Disable port B pullups
0 = Disable port A pullups
1 = Enable pullups for all port A input pins
Address: $000C
Reset:
Read:
Write:
Bit 7
0
0
Figure 6-8. Pullup Control Register (PUCR)
= Unimplemented
6
0
0
M68HC12B Family Data Sheet, Rev. 9.1
5
0
0
PUPE
4
1
3
0
0
2
0
0
PUPB
1
0
PUPA
Bit 0
0
Registers
91

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