参数资料
型号: EVAL-ADUC7023QSPZ
厂商: Analog Devices Inc
文件页数: 46/96页
文件大小: 0K
描述: KIT DEV FOR ADUC7023 QUICK START
标准包装: 1
类型: MCU
适用于相关产品: ARM7TDMI
所含物品:
ADuC7023
Data Sheet
| Page 50 of 96
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 9
Reserved.
8
SPIPO
Clearing this bit powers
down the SPI.
7 to 6
SPICLKDIV
SPI block driving clock
divider bits.
00
41.78 MHz.
01
20.89 MHz.
10
10.44 MHz.
11
5.22 MHz.
5
I2C1PO
Clearing this bit powers
down the I2C1.
4 to 3
I2C1CLKDIV
I2C0 block driving clock
divider bits.
00
41.78 MHz.
01
10.44 MHz.
10
5.22 MHz.
11
1.31 MHz.
2
I2C0PO
Clearing this bit powers
down the I2C0.
1 to 0
I2C0CLKDIV
I2C1 block driving clock
divider bits.
00
41.78 MHz.
01
10.44 MHz.
10
5.22 MHz.
11
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
Rev. E
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