RX610 Group
11. Buses
R01UH0032EJ0120 Rev.1.20
Page 292 of 1006
Feb 20, 2013
A0
A1
CSPWWAIT: 1
CSWWAIT: 1
CSWOFF: 1
WRON: 1
Tw1
Tpw1
Tn1
Tend
A2
A3
Th
D1
D2
D3
WRON: 1
WRON: 1
WRON: 1
CSWWAIT: 1
CSPWWAIT: 1
CSWOFF: 1
D0
WDOFF: 1
WDON: 1
WDOFF: 1
WDON: 1
WDON: 1
WDOFF: 1
WDON: 1
WDOFF: 1
Td1
Tw1
Tpw1
Tn1
Tend
Td1
Tend
Tend
Data write
(WR0#, WR1#, WR#)
Th
Accessed in 32 bits
Write cycle wait (CSWWAIT): 1
CS assert wait (CSON): 0
WR assert wait (WRON): 1
Write data output wait (WDON): 1
Page write cycle wait (CSPWWAIT): 1
Write-access CS extension cycle (CSWOFF): 1
Write data output extension cycle (WDOFF): 1
Accessed in 32 bits
Data bus
(D15 to D0)
External bus clock
(BCLK)
Address
(A23 to A0)
Chip select/byte control
(CSn#/BC0#, BC1#)
[Legend] n = 0 to 7
Figure 11.18 Example of Page-Write Access Operation (when 16-Bit Bus Space is Accessed in 32 Bits)