目录
内容列表
1
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.5
1.6
1.7
1.7.1
1.7.2
1.8
2
2.1
2.2
2.2.1
2.2.2
2.3
2.3.1
2.3.2
3
3.1
4
5
5.1
5.2
6
6.1
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.3
6.4
6.4.1
6.4.2
6.4.3
6.5
6.5.1
6.5.2
6.5.3
7
架构概述................................................ ............................ - 9 -
P
ROCESSOR
..................................................................................................................- 9 -
V
IDEO
..........................................................................................................................- 9 -
M
埃默里
......................................................................................................................- 9 -
I
NTERNAL
B
US
S
TRUCTURE
..........................................................................................- 9 -
ASB ......................................................................................................................... - 9 -
视频bus................................................................................................................. - 9 -
建业........................................................................................................................- 10 -
SDRAM
ONTROLLER
............................................................................................... - 10 -
P
ERIPHERALS
............................................................................................................. - 10 -
P
OWER管理
................................................................................................ - 11 -
时钟门控...........................................................................................................- 11 -
PMU.......................................................................................................................- 11 -
T
EST和调试
........................................................................................................ - 12 -
信号说明................................................ ..........................................- 13 -
208-P
IN
D
IAGRAM
...................................................................................................... - 13 -
208 P
IN
/ B
所有
N
AME
................................................................................................. - 14 -
LQFP类型Dimensions..........................................................................................- 15 -
CABGA型号尺寸............................................... ........................................- 16 -
P
IN
D
ESCRIPTIONS
...................................................................................................... - 18 -
外部信号功能............................................... .......................................- 18 -
具体引脚Description.........................................................................................- 21 -
ARM720T MACROCELL ................................................ ........................................- 25 -
ARM720T M
ACROCELL
............................................................................................. - 25 -
记忆MAP.........................................................................................................- 27 -
内部引导ROM ............................................... ...........................................- 33 -
H
ARDWARE
S
埃坦
.................................................................................................. - 33 -
S
OFTWARE
S
埃坦
.................................................................................................... - 34 -
PMU & PLL ...............................................................................................................- 37 -
E
XTERNAL
S
IGNALS
................................................................................................... - 38 -
R
EGISTERS
................................................................................................................. - 38 -
PMU模式寄存器（ PMUMR ） ............................................ .................................- 39 -
PMU ID寄存器（ PMUID ） ............................................ .......................................- 39 -
复位PMU /状态寄存器（ PMURSR ） .......................................... .......................- 40 -
PMU时钟控制寄存器（ PMUCCR ） ........................................... ..................- 43 -
PMU反跳计数器测试寄存器（ PMUDCTR ） .......................................... 45 ..- -
PMU测试寄存器（ PMUTR ） ............................................ .....................................- 47 -
PMU F
受膏
....................................................................................................... - 48 -
P
OWER
M
ANAGEMENT
............................................................................................... - 51 -
状态图........................................................................................................- 51 -
电源管理...............................................美国.......................................- 52 -
唤醒去抖动和中断............................................ ..............................- 53 -
R
ESET
S
EQUENCES
..................................................................................................... - 54 -
上电复位（冷复位） ） .......................................... .....................................- 54 -
软件生成的热复位.............................................. ..............................- 56 -
外部产生的暖RESE ............................................. ........................- 57 -
SDRAM CONTROLLER..........................................................................................- 59 -
i
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