ADUC7124 Analog Devices, ADUC7124 Datasheet - Page 57

• Manufacturer Part Number: ADUC7124
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, Large Memory, ARM7TDMI MCU with Enhanced IRQ Handler
• Manufacturer: Analog Devices

Specifications of ADUC7124

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 32000Bytes
• Gpio Pins: 30
• Adc # Channels: 12

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