User manual

RC200/203 Manual
www.celoxica.com Page 72
Parameters:
WriteNotRead: Compile time constant. To select a write, use 1. To
select a read, use 0.
Address: Address in bytes, of type unsigned 27.
Timing: 170 cycles or more.
Description:
Sets the address for a SmartMedia read or write operation, using
logical addressing.
The only valid commands to follow this macro are
RC200SmartMediaRead() or RC200SmartMediaWrite(). Ensure that
that no other CPLD actions are carried out once an address has been
set. Note that the operation in the SmartMedia will not terminate
unless a read or write and an operation end
(
RC200SmartMediaOperationEnd) are performed.
The macro adjusts automatically for whether the address is in the
first half of the page (address < 256), or the second half of the page
(255 < address < 512).
Setting a physical address
extern macro proc RC200SmartMediaSetAddress (WriteNotRead, Address);
Parameters:
WriteNotRead: Compile time constant. To select a write, use
1. To select a read, use 0.
Address: Address in bytes, of type unsigned 27.
Timing: 170 cycles or more.
Description:
Sets the address for a SmartMedia read or write operation,
using physical addressing.
The only valid commands to follow this macro are
RC200SmartMediaRead() or RC200SmartMediaWrite(). Ensure
that that no other CPLD actions are carried out once an
address has been set. Note that the operation in the
SmartMedia will not terminate unless a read or write and an
operation end (
RC200SmartMediaOperationEnd()) are
performed.
The macro adjusts automatically for whether the address is in
the first half of the page (address < 256), or the second half
of the page (255 < address < 512).
Reading from the SmartMedia
extern macro proc RC200SmartMediaRead (DataPtr, LastData);