Bus Hold Timing - NEC V850E/MS1 UPD703100 User Manual

32-/16-bit single-chip microcontrollers
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4.8.4 Bus hold timing

CLKOUT
HLDRQ
HLDAK
A0 to A23
BCYST
CSn/RASn
RD
OE
WE
UWR/UCAS
LWR/LCAS
IORD
IOWR
D0 to D15
WAIT
Note If HLDRQ signal is inactive (high level) at this sampling timing, bus hold state is not entered.
Remarks 1. The circle indicates the sampling timing.
2. The broken lines indicate high impedance.
3. n = 0 to 7
4. Timing from DRAM access to bus hold state.
CHAPTER 4 BUS CONTROL FUNCTION
TO1
TO2
TI
Note
Note
Column address
Data
User's Manual U12688EJ4V0UM00
TH
TH
TH
TI
Undefined
121

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