ADUC7126BSTZ126-RL Analog Devices Inc, ADUC7126BSTZ126-RL Datasheet - Page 57

• Manufacturer Part Number: ADUC7126BSTZ126-RL
• Description: ARM7 With 12-Bit ADC & DACs, 128kB Flash
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC7xxxr

Specifications of ADUC7126BSTZ126-RL

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 41.78MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 40
• Program Memory Size: 126KB (126K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 12x12b, D/A 4x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 77. POWCON1 MMR Bit Descriptions
Bit
[15:12]
11
[10:9]
8
[7:6]
5
[4:3]
2
[1:0]
Value
1
00
00
01
10
11
00
01
10
11
00
01
10
11
Name
PWMPO
PWMCLKDIV
SPIPO
SPICLKDIV
I2C1PO
I2C1CLKDIV
I2C0PO
I2C0CLKDIV
Description
Reserved.
Clearing this bit powers
down the PWM. Always
clear to 00.
Clearing this bit powers
down the SPI.
SPI block driving clock
divider bits.
41.78 MHz.
20.89 MHz.
10.44 MHz.
5.22 MHz.
Clearing this bit powers
down I2C1.
I2C0 block driving clock
divider bits.
41.78 MHz.
10.44 MHz.
5.22 MHz.
1.31 MHz.
Clearing this bit powers
down I2C0.
I2C1 block driving clock
divider bits.
41.78 MHz.
10.44 MHz.
5.22 MHz.
1.31 MHz.
Rev. B | Page 57 of 104
The POWCON1 write sequence is as follows:
1.
2.
3.
Write Code 0x76 to Register POWKEY3.
Write user value to Register POWCON1.
Write Code 0xB1 to Register POWKEY4.
ADuC7124/ADuC7126