tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 239

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

External Bus Interface
2 waits automatically inserted
2 waits automatically inserted + 2N (N=1)
3 waits automatically inserted + 2N (N=1)
2 waits automatically inserted + 2N (N=2)
Fig.
automatically inserted + external waits are inserted in the separate bus mode.
0 wait
8.5 shows the read operation timing when 0 wait, waits automatically inserted, and waits
fsys
A[23:0]
D[15:0]
A[23:0]
D[15:0]
A[23:0]
D[15:0]
A[23:0]
D[15:0]
A[23:0]
D[15:0]
/WAIT
/WAIT
/WAIT
/WAIT
/WAIT
/RD
/RD
/RD
/RD
/RD
--- External wait sampling point
External wait sampling points take place before a cycle of waits automatically
inserted is finished and before a 2N_wait cycle is finished as shown above. The
same applies to combinations of other numbers of waits.
Fig. 8.5 Read Operation Timing Diagram
TMP19A44 (rev1.3) 8-11
2 waits automatically
2 waits automatically
tsys
automatically
3 waits automatically
inserted
inserted
inserted
2 waits
inserted
2N_WAIT
2N_WAIT
2N_WAIT
TMP19A44
2010-04-01