Intel SA-1100 - page 27

SA-1100 Developer’s Manual 1-7
Introduction
1.4.6 Write Buffer
The SA-1100 has an eight-entry write buffer with each entry able to contain 1 to 16 bytes. A drain
write buffer operation is supported.
1.4.7 Read Buffer
The SA-1100 has a four-entry read buffer capable of l oading 1 , 4, or 8 words o f da ta per entry. This
facility permits software to preload data into the buffer for use at a later time without blocking the
operation of the processor. Software can flush either a single entry or the entire buffer (four
entries). The read buffer is controlled through system control coprocessor 15 and can be enabled
for use in user mode.