ADUC7023BCBZ62I-R7 datasheet(52/98 Pages) AD

номер детали	ADUC7023BCBZ62I-R7

подробное описание детали	Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU with Enhanced IRQ Handler

PDF	98 Pages

Scroll/Zoom	100%

производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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52 / 98 page

ADuC7023

Data Sheet

Rev. H | Page 52 of 98

Table 52. POWCON0 Write Sequence

Name

Code

POWKEY1

0x01

POWCON0

User value

POWKEY2

0xF4

POWKEY3 Register

Name:

POWKEY3

Address:

0xFFFF0434

Default value:

0xXXXX

Access:

Write

Function:

POWKEY3 prevents accidental

programming to POWCON1.

POWKEY4 Register

Name

POWKEY4

Address

0xFFFF043C

Default Value

0xXXXX

Access

Write

Function:

POWKEY4 prevents accidental

programming to POWCON1.

POWCON1 Register

Name:

POWCON1

Address:

0xFFFF0438

Default value:

0x0004

Access:

Read/write

Table 53. POWCON1 MMR Bit Designations

Bit

Value

Name

Description

15 to 12

Reserved.

PWMPO

Clearing this bit powers

down the PWM

9 to 10

Reserved.

SPIPO

Clearing this bit powers

down the SPI.

7 to 6

SPICLKDIV

SPI block driving clock

divider bits.

41.78 MHz.

20.89 MHz.

10.44 MHz.

5.22 MHz.

I2C1PO

Clearing this bit powers

down the I2C1.

4 to 3

I2C1CLKDIV

I2C0 block driving clock

divider bits.

41.78 MHz.

10.44 MHz.

5.22 MHz.

1.31 MHz.

I2C0PO

Clearing this bit powers

down the I2C0.

1 to 0

I2C0CLKDIV

I2C1 block driving clock

divider bits.

41.78 MHz.

10.44 MHz.

5.22 MHz.

1.31 MHz.

1 Divided clock for SPI/I2C0/I2C1 must be greater than or equal to the CPU

clock as selected by POWCON0[2:0]

Table 54. POWCON1 Write Sequence

Name

Code

POWKEY3

0x76

POWCON1

User value

POWKEY4

0XB1

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