r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 403
r8a77850anbg
Manufacturer Part Number
r8a77850anbg
Description
Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R8A77850ANBG.pdf
(1692 pages)
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Bit
23
22 to 20 IWRWS
19
18 to 16 IWRRD
Bit Name
⎯
⎯
Initial
Value
0
111
0
111
R/W
R
R/W
R
R/W
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
Idle Cycles between Read-Write in Same Space
These bits specify the number of idle cycles to be
inserted after the access to the memory connected to
the space. The target cycles are read-write cycles in
which consecutive accesses are performed to the same
space. For details, see section 11.5.8, Wait Cycles
between Access Cycles.
000: No idle cycle inserted
001: 1 idle cycle inserted
010: 2 idle cycles inserted
011: 3 idle cycles inserted
100: 4 idle cycles inserted
101: 5 idle cycles inserted
110: 6 idle cycles inserted
111: 7 idle cycles inserted
Reserved
This bit is always read as 0. The write value should
always be 0.
Idle Cycles between Read-Read in Different Spaces
These bits specify the number of idle cycles to be
inserted after the memory connected to the space is
accessed. The target cycles are read-read cycles in
which consecutive accesses are performed to different
spaces. For details, see section 11.5.8, Wait Cycles
between Access Cycles.
000: No idle cycle inserted
001: 1 idle cycle inserted
010: 2 idle cycles inserted
011: 3 idle cycles inserted
100: 4 idle cycles inserted
101: 5 idle cycles inserted
110: 6 idle cycles inserted
111: 7 idle cycles inserted
Rev.1.00 Jan. 10, 2008 Page 373 of 1658
11. Local Bus State Controller (LBSC)
REJ09B0261-0100
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