h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 143

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

When all areas are designated as 8-bit space, the LWR pin can be used as the I/O port. However,
when all areas are designated as 16-bit space, the LWR pin is always fixed high. Wait states
cannot be inserted.
Notes: 1. n = 3 to 0
2. When RDNn = 0
Read
Write
Figure 6.11 Bus Timing for 8-Bit, 2-State Access Space
Address bus
D15 to D8
D7 to D0
D15 to D8
D7 to D0
φ
T 1
Bus cycle
High
High impedance
Valid
T 2
Rev. 2.00, 03/04, page 111 of 534
Invalid
Valid