HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 84

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Access to External Devices: The access cycle consists of three states. The data bus is 8 bits
wide. Figure 3-10 (a) and (b) shows the external access cycle. Additional wait states (Tw) can be
inserted by the wait-state controller (WSC).
3.7.2 On-Chip Memory Access Cycle
ø
Internal address bus
Internal Read signal
Internal data bus
(Read access)
Internal Write signal
Internal data bus
(Write access)
Figure 3-6 On-Chip Memory Access Timing
T state
1
64
Memory cycle
Address
Read data
Write data
T state
2