iflash2_mtd

IFLASH2_MTD(4)                                                  IFLASH2_MTD(4)



NAME
       iflash2_mtd - memory technology driver for Intel Series 2 flash

SYNOPSIS
       insmod    iflash2_mtd.o   [pc_debug=n]   [mem_speed=n]   [word_width=n]
       [vpp_timeout_period=n] [vpp_settle=n] [erase_timeout=n] [erase_limit=n]
       [retry_limit=n] [max_tries=n] [mem_speed=n] [word_width=n]

DESCRIPTION
       Iflash2_mtd is a memory technology driver for Intel Series 2 and Series
       100 flash devices.  Memory technology drivers are used by Card Services
       to provide device-independent access for memory cards through bulk mem-
       ory services.

       Writing to Series 2 and Series 100  flash  devices  is  very  processor
       intensive.   Individual  words are written one at a time, at a speed of
       roughly 10 us per word.  This busy period  is  too  short  to  schedule
       other  processes  to  run,  so  the driver will not yield the processor
       until an entire block is written.

PARAMETERS
       pc_debug=n
              Selects the PCMCIA debugging  level.   This  parameter  is  only
              available  if  the module is compiled with debugging enabled.  A
              non-zero value enables debugging.

       mem_speed=n
              Sets the access speed of shared memory windows, in  nanoseconds.
              The  default is 0 (i.e., no extra wait states).  Values of up to
              1000 are legal.

       word_width=n
              A flag indicating if memory windows  should  be  configured  for
              8-bit  (if  0)  or  16-bit  (if  1) transfers.  The default is 1
              (16-bit).

       vpp_timeout_period=n
              In milliseconds, this specifies the maximum idle period after  a
              write  operation  before programming power will be switched off.
              The default is 1000 ms.

       vpp_settle=n
              In milliseconds, this gives a  delay  between  when  programming
              power  is switched on, and when the device is assumed to be pow-
              ered up and ready to  receive  erase  or  write  commands.   The
              default is 100 ms.

       erase_timeout=n
              In  milliseconds, specifies the poll interval for monitoring the
              status of a bulk erase operation.  The default is 100 ms.

       erase_limit=n
              In milliseconds, specifies the maximum elapsed  time  before  an
              erase operation is assumed to have failed.  The default is 10000
              ms.

       retry_limit=n
              The maximum number  of  retries  for  a  write  operation.   The
              default is 4.

       max_tries=n
              The maximum number of status register polls before a single word
              write is assumed to have timed out.  The default is 4096.

AUTHOR
       David Hinds - dahinds@users.sourceforge.net

SEE ALSO
       iflash2+_mtd(4), memory_cs(4).



pcmcia-cs                     2000/06/12 21:24:48               IFLASH2_MTD(4)