h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 229
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h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
(1547 pages)
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7.4.3
Table 7-4 shows the data buses used and valid strobes for the access spaces.
In a read, the
data bus.
In a write, the
lower half.
Table 7-4
Note: Hi-Z:
Area
8-bit access
space
16-bit access
space
Invalid: Input state; input value is ignored.
Valid Strobes
Data Buses Used and Valid Strobes
R D
H W R
Access
Size
Byte
Byte
Word
High impedance.
signal is valid without discrimination between the upper and lower halves of the
signal is valid for the upper half of the data bus, and the
Read/
Write
Read
Write
Read
Write
Read
Write
Address
—
—
Even
Odd
Even
Odd
—
—
Valid
Strobe
R D
H W R
R D
H W R
L W R
R D
H W R
,
L W R
Rev. 6.00 Feb 22, 2005 page 169 of 1484
Upper Data Bus
(D15 to D8)
Valid
Valid
Invalid
Valid
Hi-Z
Valid
Valid
Section 7 Bus Controller
L W R
Lower data bus
(D7 to D0)
Invalid
Hi-Z
Invalid
Valid
Hi-Z
Valid
Valid
Valid
REJ09B0103-0600
signal for the
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