Specifications

Hardware description
5.15.5 Resetting t
macro pro et (ResultPtr);
r
iming:
ore.
Description:
Resets the SmartMedia device. You can reset the device at any time; the reset
operation is the only one that can be run ignoring the busy status returned by the
ing S
ers:
bytes of type unsigned 27.
urns 0 for success, 1 for
Timing
Description:
ck address resides in the top
18 bits. For cards with 32 pages per block, the block address is in the top 17 bits.
Ï
RC200SmartMediaErase() performs an erase on the entire block, regardless of page or
he SmartMedia
extern c RC200SmartMediaRes
Parameters: ResultPtr: Pointer to register of type unsigned 1. Returns 0 for success, 1 fo
failure.
110 clock cycles or m
T
SmartMedia device.
5.15.6 Eras martMedia memory
extern macro proc RC200SmartMediaErase (Address, ResultPtr);
Paramet
Address: Block address in
ResultPtr: Pointer to register of type unsigned 1. Ret
failure.
250 clock cycles or more.
Performs an erase on the entire block set by
Address.
Note that for 16 pages per block (4/8MB cards) the blo
You can check how many pages there are in a block in your card using
RC200SmartMediaIsBlock32Pages().
column number.
5.15.7 Number of pages per block
extern macro expr RC200SmartMediaIsBlock32Pages ();
You can determine whether your SmartMedia device has 16 or 32 pages per block by calling
ression returns a true condition for cards that are 32
pages per block, and a false denotes 16 pages. The expression will only return valid results after a
5.15.8 o
The RC 0 dressing. The
• It skips bad blocks, avoiding the risk of reading or writing invalid data.
RC200SmartMediaIsBlock32Pages(). This exp
successful call to
RC200SmartMediaInit().
L gical and physical addressing
20 PSL allows you to perform reads and writes using physical or logical ad
advantages of using logical addressing are:
• It preserves the CIS (Card Information Structure) and IDI (ID information) fields. If you
overwrite these fields, the SmartMedia card may not work with other hardware.
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