MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 91
MC68HC912B32CFU8
Manufacturer Part Number
MC68HC912B32CFU8
Description
IC MCU 32K FLASH 8MHZ 80-QFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet
1.MCHC912B32CFUE8.pdf
(334 pages)
Specifications of MC68HC912B32CFU8
Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
63
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
768 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC912B32CFU8
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68HC912B32CFU8
Manufacturer:
FREESCALE
Quantity:
20 000
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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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