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16-Bit, 2-State Access Space: Figures 6.12 to 6.14 show bus timings for a 16-bit, 2-state access
space. When a 16-bit access space is accessed, the upper half (D15 to D8) of the data bus is used
for odd addresses, and the lower half (D7 to D0) for even addresses. Wait states cannot be
inserted.
Bus cycle
T
1
T
2
Address bus
ø
D15 to D8
Valid
D7 to D0
Invalid
Read
D15 to D8
Valid
D7 to D0
Write
High
High impedance
Notes: 1. n = 0 to 7
2. When RDNn = 0
Figure 6.12 Bus Timing for 16-Bit, 2-State Access Space
(Even Address Byte Access)
Содержание H8S/2376 F-ZTAT
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