先进的 i/o 控制 和 motherboard glue 逻辑
数据手册
smsc lpc47m182
5
修订 1.8
smsc/非-smsc 寄存器 sets
(02-24-05)
数据手册
7.3
并行的端口.......................................................................................................................................95
7.4
ibm xt/在 兼容, bi-directional 一个d epp modes...................................................................96
7.4.1
数据 端口 ...........................................................................................................................................96
7.4.2
状态端口..............................................................................................................................................97
7.4.3
控制端口 ...................................................................................................................................97
7.4.4
epp 地址端口 ...........................................................................................................................98
7.4.5
epp 数据 port 0................................................................................................................................98
7.4.6
epp 数据 port 1................................................................................................................................99
7.4.7
epp 数据 port 2................................................................................................................................99
7.4.8
epp 数据 port 3................................................................................................................................99
7.5
epp 1.9 operation ............................................................................................................................99
7.5.1
软件 constraints ..............................................................................................................................99
7.6
epp 1.9写..................................................................................................................................100
7.7
epp 1.9读..................................................................................................................................100
7.8
epp 1.7 operation ..........................................................................................................................101
7.8.1
软件 constraints ............................................................................................................................101
7.9
epp 1.7写..................................................................................................................................101
7.10
epp 1.7读 ..............................................................................................................................101
7.10.1
扩展 能力并行的 端口...................................................................................................102
7.10.2
Vocabulary ........................................................................................................................................102
7.11
ecp implementation 标准 ....................................................................................................103
7.11.1
Description ........................................................................................................................................103
7.12
寄存器 definitions......................................................................................................................104
7.12.1
数据 和 ecpa先进先出 端口 ...............................................................................................................105
7.12.2
设备 状态 register (dsr) ..................................................................................................106
7.12.3
设备 控制 register (dcr)...............................................................................................106
7.12.4
cfifo (并行的 port 数据 先进先出).......................................................................................................107
7.12.5
ecpdfifo (ecp数据 先进先出)............................................................................................................107
7.12.6
tfifo (测试先进先出模式)......................................................................................................................107
7.12.7
cnfga (configurati在 register 一个).......................................................................................................108
7.12.8
cnfgb (configurati在 register b).......................................................................................................108
7.12.9
ecr (扩展 内容rol register)........................................................................................................108
7.13
运作 .....................................................................................................................................110
7.13.1
模式 切换/软ware 控制 .....................................................................................................110
7.14
ecp operation .............................................................................................................................110
7.15
末端 from ecp 模式 .......................................................................................................111
7.16
command/数据 ............................................................................................................................111
7.17
数据 竞赛ression .......................................................................................................................111
7.18
管脚 definition ................................................................................................................................112
7.19
lpc connections .........................................................................................................................112
7.20
中断 ......................................................................................................................................112
7.21
先进先出 运作 ............................................................................................................................112
7.21.1
dma tranSFERS ...........................................................................................................................113
7.21.2
dma 模式 - transfers 从这 先进先出 至这 host ............................................................................113
7.21.3
编写程序 i/o 模式 或者非-dma模式.......................................................................................113
7.21.4
编写程序 i/o - transfers 从这 先进先出 至这 host....................................................................114
7.21.5
编写程序 i/o - transfers 从这 host 至这 fiFO....................................................................114
7.22
电源 management.....................................................................................................................114
7.23
串行irq.....................................................................................................................................114
7.23.1
定时 图解 为ser_irq 循环 ..............................................................................................115
7.23.2
ser_irq cycle 内容rol....................................................................................................................115
7.23.3
ser_irq 数据框架 ......................................................................................................................116
7.23.4
停止 循环控制 ............................................................................................................................117
7.23.5
Latency .............................................................................................................................................117
7.23.6
eoi/isr 读Latency......................................................................................................................117
7.23.7
交流/直流 明确的ation issue ................................................................................................................117
7.23.8
重置 和 initialization ......................................................................................................................117
7.24
中断 generating 寄存器.....................................................................................................117
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