M306NKT-EPB User’s Manual 4. Hardware Specifications REJ10J0519-0200 Rev.2.00 Oct. 16, 2006 Page 73 of 104
Figure 4.1 Memory expansion mode and microprocessor mode (3 wait, accessing external area) Read timing
Write timing
BCLK
CSi
ADi
BHE
ALE
RD
DBi
td(BCLK-CS) th(BCLK-CS)
tcyc
td(BCLK-AD) th(BCLK-AD)
th(RD-CS)
td(BCLK-ALE)
th(BCLK-ALE) th(RD-AD)
td(BCLK-RD) th(BCLK-RD)
tac2(RD-DB)
Hi-Z
tsu(DB-RD) th(RD-DB)
BCLK
CSi
ADi
BHE
ALE
WR ,
WRL, WRH
DBi
td(BCLK-CS) th(BCLK-CS)
tcyc
td(BCLK-AD)
td(BCLK-ALE)th(BCLK-ALE) th(WR-AD)
td(BCLK-WR) th(BCLK-WR)
td(BCLK-DB)
Hi-Z
td(DB-WR)
th(BCLK-AD)
th(WR-CS)
th(WR-DB)
th(BCLK-DB)