LPC47M172_07 SMSC [SMSC Corporation], LPC47M172_07 Datasheet - Page 5

• Manufacturer Part Number: LPC47M172_07
• Description: Advanced I/O Controller with Motherboard GLUE Logic
• Manufacturer: SMSC [SMSC Corporation]

SMSC/Non-SMSC Register Sets (Rev. 01-11-07)
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
7.18
7.19
7.20
7.21
7.22
7.23
7.24
7.25
7.8.1
7.10.1
7.10.2
7.11.1
7.12.1
7.12.2
7.12.3
7.12.4
7.12.5
7.12.6
7.12.7
7.12.8
7.12.9
7.13.1
7.21.1
7.21.2
7.21.3
7.21.4
7.21.5
7.23.1
7.23.2
7.23.3
7.23.4
7.23.5
7.23.6
7.23.7
7.23.8
7.25.1
7.25.2
7.25.3
7.25.4
7.25.5
7.25.6
7.25.7
7.25.8
7.25.9
7.25.10
7.25.11
7.25.12
7.25.13
7.25.14
EPP 1.9 Read ............................................................................................................................................95
EPP 1.7 Operation .....................................................................................................................................95
EPP 1.7 Write.............................................................................................................................................96
EPP 1.7 Read .........................................................................................................................................96
ECP Implementation Standard ...............................................................................................................98
Register Definitions.................................................................................................................................99
Operation..............................................................................................................................................106
ECP Operation .....................................................................................................................................106
Termination from ECP Mode ................................................................................................................107
Command/Data.....................................................................................................................................107
Data Compression ................................................................................................................................107
Pin Definition ........................................................................................................................................107
LPC Connections..................................................................................................................................108
Interrupts ..............................................................................................................................................108
FIFO Operation.....................................................................................................................................108
Power Management..............................................................................................................................110
Serial IRQ .............................................................................................................................................110
Interrupt Generating Registers .............................................................................................................113
8042 Keyboard Controller Description ..................................................................................................114
Software Constraints...........................................................................................................................95
Extended Capabilities Parallel Port .................................................................................................97
Vocabulary.......................................................................................................................................97
Description.......................................................................................................................................98
Data and ecpAFifo Port .................................................................................................................100
Device Status Register (dsr)..........................................................................................................101
Device Control Register (dcr) ........................................................................................................101
CFIFO (Parallel Port Data FIFO) ...................................................................................................102
ECPDFIFO (ECP Data FIFO) ........................................................................................................102
tFifo (Test FIFO Mode) ..................................................................................................................102
cnfgA (Configuration Register A) ...................................................................................................103
cnfgB (Configuration Register B) ...................................................................................................103
ecr (Extended Control Register) ....................................................................................................103
Mode Switching/Software Control..................................................................................................106
DMA Transfers ..............................................................................................................................109
DMA Mode - Transfers from the FIFO to the Host.........................................................................109
Programmed I/O Mode or Non-DMA Mode ...................................................................................109
Programmed I/O - Transfers from the FIFO to the Host ................................................................109
Programmed I/O - Transfers from the Host to the FIFO ................................................................110
Timing Diagrams For SER_IRQ Cycle ..........................................................................................110
SER_IRQ Cycle Control ................................................................................................................111
SER_IRQ Data Frame...................................................................................................................112
Stop Cycle Control.........................................................................................................................112
Latency ..........................................................................................................................................113
EOI/ISR Read Latency ..................................................................................................................113
AC/DC Specification Issue ............................................................................................................113
Reset and Initialization ..................................................................................................................113
Keyboard Interface ........................................................................................................................114
Keyboard Data Write .....................................................................................................................115
Keyboard Data Read .....................................................................................................................115
Keyboard Command Write ............................................................................................................115
Keyboard Status Read ..................................................................................................................115
CPU-to-Host Communication ........................................................................................................115
Host-to-CPU Communication ........................................................................................................115
KIRQ..............................................................................................................................................115
MIRQ .............................................................................................................................................116
External Keyboard and Mouse Interface .......................................................................................116
Keyboard Power Management ......................................................................................................116
Soft Power Down Mode.................................................................................................................116
Hard Power Down Mode ...............................................................................................................116
Interrupts .......................................................................................................................................117
DATASHEET
Page 5
Advanced I/O Controller with Motherboard GLUE Logic
SMSC LPC47M172
Datasheet