CHAPTER 5 MEMORY ACCESS CONTROL FUNCTION
User’s Manual U12688EJ4V0UM00
128
Figure 5-2. SRAM, External ROM, External I/O Access Timing (3/4)
(c) During DMA flyby transfer (SRAM
→
→
→
→
External I/O)
T1
T2
Address
Data
Data
WAIT
D0 to D15
IOWR
IORD
LWR/LCAS
UWR/UCAS
WE
OE
RD
CSn/RASn
BCYST
A0 to A23
CLKOUT
Data
Address
Address
T2
TF
T1
TW
T2
T1
DMAAKm
Remarks 1. The circle indicates the sampling timing.
2. The broken lines indicate high impedance.
3. n = 0 to 7
4. m = 0 to 3
Содержание V850E/MS1 UPD703100
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