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 6
smsc lpc47m172
数据手册
7.6
epp 1.9 write.............................................................................................................................................95
7.7
epp 1.9读 ............................................................................................................................................96
7.8
epp 1.7 operation .....................................................................................................................................96
7.8.1
软件 constraints...........................................................................................................................96
7.9
epp 1.7 write.............................................................................................................................................97
7.10
epp 1.7读.........................................................................................................................................97
7.10.1
扩展 能力并行的 端口 .................................................................................................98
7.10.2
Vocabulary.......................................................................................................................................98
7.11
ecp implementation standard ...............................................................................................................99
7.11.1
Description.......................................................................................................................................99
7.12
寄存器 definitions...............................................................................................................................100
7.12.1
数据 和 ecpa先进先出端口 .................................................................................................................101
7.12.2
设备 状态 register(dsr)..........................................................................................................102
7.12.3
设备 控制 register(dcr) ........................................................................................................102
7.12.4
cfifo (并行的 port 数据 先进先出) ...................................................................................................103
7.12.5
ecpdfifo (ecp数据 先进先出)........................................................................................................103
7.12.6
tfifo (测试先进先出模式) ..................................................................................................................103
7.12.7
cnfga (configurati在 register 一个) ...................................................................................................104
7.12.8
cnfgb (configurati在 register b) ...................................................................................................104
7.12.9
ecr (扩展 内容rol register) ....................................................................................................104
7.13
Operation..............................................................................................................................................107
7.13.1
模式 切换/所以ftware control..................................................................................................107
7.14
ecp operation .....................................................................................................................................107
7.15
末端 从ECP模式 ................................................................................................................108
7.16
command/data.....................................................................................................................................108
7.17
数据 竞赛ression................................................................................................................................108
7.18
管脚 definition ........................................................................................................................................108
7.19
lpc connections..................................................................................................................................109
7.20
Interrupts ..............................................................................................................................................109
7.21
先进先出 运作.....................................................................................................................................109
7.21.1
dma transfers ..............................................................................................................................110
7.21.2
dma 模式 - transfers 从这 先进先出 至这 host.........................................................................110
7.21.3
编写程序 i/o 模式 或者非-dma模式 ...................................................................................110
7.21.4
编写程序 i/o - transfers 从这 先进先出 至这 host ................................................................110
7.21.5
编写程序 i/o - transfers 从这 host 至这 fiFO ................................................................111
7.22
电源 毫安nagement..............................................................................................................................111
7.23
串行IRQ .............................................................................................................................................111
7.23.1
定时 图解 为ser_irq cycle ..........................................................................................111
7.23.2
ser_irq cycle 内容rol ................................................................................................................112
7.23.3
ser_irq 数据框架...................................................................................................................113
7.23.4
停止 循环控制.........................................................................................................................113
7.23.5
Latency..........................................................................................................................................114
7.23.6
eoi/isr 读Latency ..................................................................................................................114
7.23.7
交流/直流 明确的ation issue ............................................................................................................114
7.23.8
重置 和 initialization ..................................................................................................................114
7.24
中断 generating registers .............................................................................................................114
7.25
8042 键盘 controller description ..................................................................................................115
7.25.1
键盘 在terface ........................................................................................................................115
7.25.2
键盘 data 写 .....................................................................................................................116
7.25.3
键盘 data read .....................................................................................................................116
7.25.4
键盘 comm和 write ............................................................................................................116
7.25.5
键盘 status读 ..................................................................................................................116
7.25.6
cpu-至-host communication ........................................................................................................116
7.25.7
host-至-cpu communication ........................................................................................................116
7.25.8
kirq..............................................................................................................................................116
7.25.9
MIRQ .............................................................................................................................................117
7.25.10
外部 键盘 一个d mouse interface .......................................................................................117
7.25.11
键盘 power 管理 ......................................................................................................117
7.25.12
软 电源 做wn mode.................................................................................................................117
7.25.13
hard 电源向下模式 ...............................................................................................................117
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