HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 105

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

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 2.16 shows the
access timing for the on-chip supporting modules. Figure 2.17 shows the pin states.
φ
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 2.16 On-Chip Supporting Module Access Cycle
T
1
Rev.6.00 Sep. 27, 2007 Page 75 of 1268
Bus cycle
Address
Write data
Read data
T
2
REJ09B0220-0600
Section 2 CPU