HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 68

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

2.9.3 On-Chip Supporting Module Access Timing
The on-chip supporting modules are accessed in three states. The data bus is 8 or 16 bits wide,
depending on the register being accessed. Figure 2-17 shows the on-chip supporting module
access timing. Figure 2-18 indicates the pin states.
Read
access
Write
access
ø
Address bus
Internal read signal
Internal data bus
Internal write signal
Internal data bus
Figure 2-17 Access Cycle for On-Chip Supporting Modules
T state
1
53
Bus cycle
Address
T state
2
Read data
Write data
T state
3