OPERATION........................................................................................................................................84
AUTO POWER MANAGEMENT....................................................................................................................87
FDC POWER MANAGEMENT..........................................................................................................................88
DSR From Powerdown........................................................................................................................88
Wake Up From Auto Powerdown.........................................................................................................88
Register Behavior ...............................................................................................................................88
Pin Behavior .......................................................................................................................................89
UART POWER MANAGEMENT .......................................................................................................................91
PARALLEL PORT .........................................................................................................................................91
SERIAL IRQ ............................................................................................................................................91
Introduction ........................................................................................................................................91
IRQSER Cycle Modes..........................................................................................................................92
IRQSER IRQ/Data Frames ....................................................................................................................93
Stop Cycle Control..............................................................................................................................94
Latency...............................................................................................................................................94
EOI/ISR Read Latency .........................................................................................................................94
AC/DC Specification Issue ..................................................................................................................94
Reset and Initialization...........................................................................................................................94
ADD PCI NCLKRUN SUPPORT................................................................................................................94
Overview.............................................................................................................................................94
Using nCLKRUN .................................................................................................................................95
CONFIGURATION.......................................................................................................................................96
CONFIGURATION ACCESS PORTS ...................................................................................................................96
CONFIGURATION STATE................................................................................................................................96
Entering the Configuration State.........................................................................................................96
Configuration Register Programming..................................................................................................97
Exiting the Configuration State ...........................................................................................................97
Programming Example........................................................................................................................97
Configuration Select Register (CSR) ...................................................................................................97
CONFIGURATION REGISTERS DESCRIPTION ......................................................................................................98
CR00...................................................................................................................................................99
CR01...................................................................................................................................................99
CR02.................................................................................................................................................100
CR03.................................................................................................................................................100
CR04.................................................................................................................................................101
CR05.................................................................................................................................................102
CR06.................................................................................................................................................102
CR07.................................................................................................................................................103
CR08.................................................................................................................................................103
CR09.................................................................................................................................................103
CR0A ................................................................................................................................................104
CR0B ................................................................................................................................................104
CR0C ................................................................................................................................................105
CR0D ................................................................................................................................................105
CR0E.................................................................................................................................................105
CR0F.................................................................................................................................................105
CR10.................................................................................................................................................106
CR11.................................................................................................................................................106
CR12 - CR13......................................................................................................................................106
CR14.................................................................................................................................................107
CR15.................................................................................................................................................107
CR16.................................................................................................................................................107
CR17.................................................................................................................................................107
CR18 - CR1D .....................................................................................................................................108
CR1E.................................................................................................................................................108
CR1F.................................................................................................................................................108
SMSC DS – FDC37N3869
Page 6
Rev. 10/25/2000