h8s2277 Renesas Electronics Corporation., h8s2277 Datasheet - Page 82

• Manufacturer Part Number: h8s2277
• Description: Hitachi Single-chip Microcomputer H8s/2276 Series
• Manufacturer: Renesas Electronics Corporation.

2.9.3
The on-chip supporting modules are accessed in two states. The data bus is either 8 bits or 16 bits
wide, depending on the particular internal I/O register being accessed. Figure 2.19 shows the
access timing for the on-chip supporting modules. Figure 2.20 shows the pin states.
60
ø
Internal address bus
Read
access
Write
access
On-Chip Supporting Module Access Timing
Internal read signal
Internal data bus
Internal write signal
Internal data bus
Figure 2.19 On-Chip Supporting Module Access Cycle
T1
Bus cycle
Address
Write data
Read data
T2