W86L387D Datasheet, PDF (10/25 Pages) Winbond – Winbond Host Interface Memory StickTM Bridge

W86L387D
PRELIMINARY
7. FUNCTIONAL DESCRIPTION
7.1 Host Interface
The Host interface type may be type 1 or type 2 and the data size of the data bus may be 16-bit or
8-bit.
Host Interface Type 1:
The Host interface type 1 is selected when XTYP pin is low. The data size of the CPU data bus may
be 16-bit or 8-bit. Figure 7-1 shows the timing of 16-bit CPU read and write in type 1, figure 7-2 and
7-3 show the timing of CPU 8-bit data bus read and write in type 1.
A[3:1]
D[15:0]
XCSN
XRDN
XWRHN
XWRLN
DO[15:0]
DI[15:0]
Fig. 7-1 16-bit Read and Write Access in Host I/F Type 1.
Publication Release Date: July 2001
-7-
Revision 0.50