MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 39

• Manufacturer Part Number: MC68HC912B32VFU8
• Manufacturer: Freescale Semiconductor

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

Chapter 2
Register Block
2.1 Introduction
The register block can be mapped to any 2-Kbyte boundary within the standard 64-Kbyte address space
by manipulating bits REG15–REG11 in the register initialization register (INITRG). INITRG establishes
the upper five bits of the register block’s 16-bit address. The register block occupies the first 512 bytes of
the 2-Kbyte block.
Default addressing (after reset) is indicated in
Operating Modes and Resource
In peripheral mode or in expanded modes with the emulate port E bit (EME) set, these registers are not
in the map:
In peripheral mode, these registers are not in the map:
Freescale Semiconductor
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Port A data register, PORTA
Port B data register, PORTB
Port A data direction register, DDRA
Port B data direction register, DDRB
Port E data register, PORTE
Port E data direction register, DDRE
Mode register, MODE
Pullup control register, PUCR
Reduced drive register, RDRIV
In expanded and peripheral modes, these registers are not in the map:
Mapping.
M68HC12B Family Data Sheet, Rev. 9.1
Figure
NOTE
2-1. For additional information, refer to
Chapter 5
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