mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 239

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mc9s12e256

Manufacturer Part Number
mc9s12e256
Description
Hcs12 Microcontrollers 16-bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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7.3.2.2
This register is reserved.
Read: always read $00
Write: unimplemented
7.3.2.3
Read: read zeroes when DJM is set
Write: unimplemented when DJM is set
The DAC data register is an 8-bit readable/writable register that stores the data to be converted when DJM
bit is clear. When the DACE bit is set, the value in this register is converted into an analog voltage such
that values from $00 to $FF result in equal voltage increments from V
this register reads zeroes and cannot be written.
Freescale Semiconductor
Module Base + 0x0002
Module Base + 0x0000
Reset
Reset
W
R
W
R
BIT 7
Reserved Register (DACC1)
DAC Data Register — Left Justified (DACD)
0
0
0
7
7
= Unimplemented or Reserved
BIT 6
Figure 7-5. DAC Data Register — Left Justified (DACD)
0
0
0
6
6
Figure 7-4. Reserved Register (DACC1)
BIT 5
MC9S12E256 Data Sheet, Rev. 1.08
0
0
0
5
5
BIT 4
0
0
0
4
4
BIT 3
3
0
0
3
0
Chapter 7 Digital-to-Analog Converter (DAC8B1CV1)
SSA
BIT 2
to V
0
0
0
2
2
REF
. When DJM bit is set,
BIT 1
0
0
0
1
1
BIT 0
0
0
0
0
0
239

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