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H8SX/1663R Datenblatt(PDF) 336 Page - Renesas Technology Corp

Teilenummer H8SX/1663R
Bauteilbeschribung  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1504 Pages
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Hersteller  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8SX/1663R Datenblatt(HTML) 336 Page - Renesas Technology Corp

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Section 9 Bus Controller (BSC)
Rev. 2.00 Sep. 24, 2008 Page 304 of 1468
REJ09B0412-0200
(1)
When DDS = 1 or EDDS = 1
A fast-page access is performed regardless of the bus master, only according to the address. The
DACK and EDACK signals are asserted at the start of the Tc1 cycle.
Figure 9.58 shows the output timing example of the
DACK and EDACK signals when DDS = 1 or
EDDS = 1.
T
p
T
r
T
c1
T
c2
Address bus
B
φ
RAS
LUCAS
LLCAS
WE
OE (RD)
WE
OE (RD)
Data bus
High
Row address
Column address
High
Read
Write
Data bus
DACK or
EDACK
BS
RD/
WR
DKC, EDKC = 1
DKC, EDKC = 0
Figure 9.58 Output Timing Example of
DACK and EDACK when DDS = 1 or EDDS = 1
(RAST = 0, CAST = 0)



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