MC9S12E128CPVE Freescale Semiconductor, MC9S12E128CPVE Datasheet - Page 243

IC MCU 128K FLASH 25MHZ 112-LQFP

MC9S12E128CPVE

Manufacturer Part Number
MC9S12E128CPVE
Description
IC MCU 128K FLASH 25MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheets

Specifications of MC9S12E128CPVE

Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
91
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 2.75 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Processor Series
S12E
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
12
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
16-ch x 10-bit
On-chip Dac
2-ch x 8-bit
Controller Family/series
HCS12/S12X
No. Of I/o's
90
Ram Memory Size
8KB
Cpu Speed
25MHz
No. Of Timers
4
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
For Use With
M68EVB912E128 - BOARD EVAL FOR MC9S12E128/64
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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7.4
The DAC8B1C module consists of analog and digital sub-blocks.
7.4.1
Data to be converted is written to DACD register. The data can be mapped either to left end or right end of
DACD register by clearing or setting DJM bit of DACC0 register. Also, the data written to DACD can be
a signed or unsigned data depending on DSGN bit of DACC0 register. See
formats. The maximum unsigned data that can be written to DACD register is $FF while the minimum
value is $00. If the data is signed, the maximum value that can be written to DACD is $7F while the
minimum value is $80, where $7F (signed) corresponds to $FF (unsigned) and $80 (signed) corresponds
to $00 (unsigned).
corresponding voltage output. See
Freescale Semiconductor
Functional Description
Functional Description
DJM
Table 7-4
0
0
1
1
shows this characteristic between signed, unsigned data values and their
V
DSGN
REF
0
1
0
1
Table 7-4. Signed and Unsigned Data
Table 7-4
Input signal
/V
MC9S12E128 Data Sheet, Rev. 1.07
V
RH
2.580
0.020
0.000
RL
5.12
5.08
5.07
2.56
2.54
2.52
= 5.12volts
Table 7-3. Data Formats
and DAC Output Codes
= 0
for DAC signed and un-signed data and DAC output codes.
8 bit/right justified/unsigned — bits 7–0
8 bit/left justified/unsigned — bits 15–8
8 bit/left justified/signed — bits 15–8
8 bit/right justified/signed bits — 7–0
Description and Bus Bit Mapping
Signed
Codes
8-Bit
7E
7D
FF
FE
7F
01
00
81
80
Chapter 7 Digital-to-Analog Converter (DAC8B1CV1)
Unsigned
Codes
8-Bit
FE
FD
FF
7F
7E
81
80
01
00
Table 7-3
below for data
243

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