先进的 i/o 控制 和 motherboard glue 逻辑
数据手册
smsc/非-smsc 寄存器 sets (
rev. 02-27-04)
页 5
smsc lpc47m172
数据手册
6.8
数据 转移Termination .........................................................................................................................54
6.9
结果阶段..............................................................................................................................................54
6.10
command 设置/descriptions ....................................................................................................................54
6.10.1
Instructi在 set..................................................................................................................................57
6.11
数据 转移 commands ......................................................................................................................63
6.11.1
读数据 .......................................................................................................................................63
6.12
读 deleted data .................................................................................................................................64
6.13
读 一个追踪..........................................................................................................................................65
6.14
写数据...............................................................................................................................................66
6.15
写 deleted data .................................................................................................................................66
6.16
核实 ......................................................................................................................................................66
6.17
format 一个追踪.......................................................................................................................................67
6.18
控制Commands.................................................................................................................................69
6.18.1
读 id ...........................................................................................................................................69
6.18.2
Recalibrate ......................................................................................................................................69
6.18.3
Seek ................................................................................................................................................69
6.19
sense interrupt 状态 ............................................................................................................................70
6.20
sense drive stat美国 .................................................................................................................................71
6.21
Specify....................................................................................................................................................71
6.22
Configure ................................................................................................................................................71
6.22.1
配置 default values.................................................................................................................71
6.23
版本 ...................................................................................................................................................72
6.24
相关的Seek .........................................................................................................................................72
6.25
Perpendicular mode................................................................................................................................73
6.26
锁 ........................................................................................................................................................74
6.27
增强DUMPREG ............................................................................................................................75
6.27.1
Compatibility....................................................................................................................................75
6.28
串行 端口(uart)..................................................................................................................................75
6.28.1
寄存器 description ........................................................................................................................75
6.28.2
receive 缓存区 register(rb) ..........................................................................................................76
6.28.3
transmit 缓存区 register(tb)..........................................................................................................76
6.28.4
中断 使能寄存器(ier) .......................................................................................................76
6.28.5
先进先出 控制 register(fcr)...........................................................................................................77
6.28.6
中断 identification 寄存器(iir)................................................................................................77
6.28.7
线条 控制 register(lcr) ............................................................................................................79
6.28.8
modem 控制 register(mcr) ......................................................................................................80
6.28.9
线条 状态 register(lsr)..............................................................................................................81
6.28.10
modem 状态 register(msr)........................................................................................................82
6.28.11
scratchpad register(scr) .............................................................................................................83
6.29
可编程序的 波特 比率 发生器 (一个nd divisor latchesdlh,dll) .................................................83
6.29.1
效应 的 这 reset 在 register 文件 ...............................................................................................84
6.29.2
先进先出 中断模式 operation .......................................................................................................84
6.29.3
先进先出 polled mode operation...........................................................................................................85
chapter 7
注释 在 串行 port operation ...........................................................................................89
7.1
先进先出 模式 operation: ...............................................................................................................................89
7.1.1
一般 ...............................................................................................................................................89
7.1.2
tx 和 rx 先进先出Operation.................................................................................................................89
7.2
infrared 在terface........................................................................................................................................90
7.3
并行的端口................................................................................................................................................90
7.4
ibm xt/在 兼容, bi-directional 一个d epp模式.............................................................................92
7.4.1
数据端口.............................................................................................................................................92
7.4.2
状态端口 ..........................................................................................................................................92
7.4.3
控制端口.........................................................................................................................................93
7.4.4
epp address port ...............................................................................................................................94
7.4.5
epp 数据 port 0..................................................................................................................................94
7.4.6
epp 数据 port 1..................................................................................................................................94
7.4.7
epp 数据 port 2..................................................................................................................................94
7.4.8
epp 数据 port 3..................................................................................................................................95
7.5
epp 1.9 operation .....................................................................................................................................95
7.5.1
软件 constraints...........................................................................................................................95
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