MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 283

• 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

SCAN — Enable Continuous Channel Scan Bit
MULT — Enable Multichannel Conversion Bit
CD, CC, CB, and CA — Channel Select for Conversion Bits
Freescale Semiconductor
When a conversion sequence is initiated by a write to the ATDCTL register, the user has a choice of
performing a sequence of four (or eight, depending on the S8CM bit) conversions or continuously
performing four (or eight) conversion sequences.
0 = Single conversion sequence
1 = Continuous conversion sequences (scan mode)
0 = ATD sequencer runs all four or eight conversions on a single input channel selected via the CD,
1 = ATD sequencer runs each of the four or eight conversions on sequential channels in a specific
CC, CB, and CA bits.
group. Refer to
S8CM
0
0
0
0
1
Table 17-4. Multichannel Mode Result Register Assignment
CD
0
0
1
1
0
Table
CC
0
1
0
1
0
0
0
0
1
1
1
1
17-4.
M68HC12B Family Data Sheet, Rev. 9.1
CB
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CA
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Channel Signal
(V
Test/reserved
Reserved
Reserved
Reserved
Reserved
RH
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
V
V
+ V
RH
RL
RL
)/2
Result in ADRx
if MULT = 1
ADR0
ADR1
ADR2
ADR3
ADR0
ADR1
ADR2
ADR3
ADR0
ADR1
ADR2
ADR3
ADR0
ADR1
ADR2
ADR3
ADR0
ADR1
ADR2
ADR3
ADR4
ADR5
ADR6
ADR7
ATD Registers
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