ADUC7128BSTZ126-RL Analog Devices Inc, ADUC7128BSTZ126-RL Datasheet - Page 46

• Manufacturer Part Number: ADUC7128BSTZ126-RL
• Description: IC DAS MCU ARM7 ADC/DDS 64-LQFP
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7128BSTZ126-RL

• Core Size: 16/32-Bit
• Program Memory Size: 126KB (126K x 8)
• Core Processor: ARM7
• Speed: 41.78MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: PLA, POR, PWM, PSM, Temp Sensor, WDT
• Number Of I /o: 28
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x12b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-LQFP
• Controller Family/series: (ARM7) ADUC
• No. Of I/o's: 40
• Cpu Speed: 41.78MHz
• No. Of Timers: 5
• Digital Ic Case Style: LQFP
• Embedded Interface Type: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADUC7128QSPZ - KIT DEV FOR ADUC7128
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: ADUC7128BSTZ126-RLTR

ADuC7128/ADuC7129
DACEN Register
Name
DACEN
Table 50. DACEN MMR Bit Designations
Bit
7:1
0
DACDAT Register
Name
DACDAT
Table 51. DACDAT MMR Bit Designations
Bit
15:10
9:0
Table 53. DDSCON MMR Bit Designations
Bit
7:6
5
4
3:0
Address
0xFFFF06B8
Description
Reserved.
Set to 1 by the user to enable DAC mode.
Set to 0 by the user to enable DDS mode.
Description
Reserved.
DDS Output Enable.
Reserved.
Binary Divide Control.
DIV
0000
0001
0010
0011
0100
0101
0110
0111
1xxx
Address
0xFFFF06B4
Description
Reserved.
10-bit data for DAC.
Set by user to enable the DDS output. This has an effect only if the DDS is selected in DACCON.
Cleared by user to disable the DDS output.
Default Value
0x00
Default Value
0x0000
Scale Ratio
0.000
0.125
0.250
0.375
0.500
0.625
0.750
0.875
1.000
Access
R/W
Access
R/W
Rev. 0 | Page 46 of 92
The DACDAT MMR controls the output of the DAC. The data
written to this register is a ±9-bit signed value. This means that
0x0000 represents midscale, 0x0200 represents zero scale, and
0x01FF represents full scale.
DACEN and DACDAT require key access. To write to these
MMRs, use the sequences shown in Table 52.
Table 52. DACEN and DACDAT Write Sequences
DACEN
DACKEY0 = 0x07
DACEN = user value
DACKEY1 = 0xB9
DDS
The DDS is used to generate a digital sine wave signal for the
DAC on the ADuC7128/ADuC7129. It can be enabled into
a free running mode by the user.
Both the phase and frequency can be controlled.
DACDAT
DACKEY0 = 0x07
DACDAT = user value
DACKEY1 = 0xB9