HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 164

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

16-Bit, 2-State Access Space: Figures 6.7 to 6.9 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 even addresses, and the lower half (D7 to D0) for odd addresses. Wait states cannot be
inserted.
Rev. 2.0, 08/02, page 124 of 788
Figure 6.7 Bus Timing for 16-Bit, 2-State Access Space (Even Byte Access)
Read
Write
/
/
Address bus
D15 to D8
D15 to D8
(IOSE = 1)
(IOSE = 0)
D7 to D0
D7 to D0
Ø
T
1
Bus cycle
High level
Undefined
Valid
T
2
Invalid
Valid