HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 386

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

8.6
8.6.1
Disable the cache before entering the standby mode for power-down operation. After returning
from standby, initialize the cache before use.
8.6.2
Changing the contents of CCR also changes cache operation. The chip makes full use of pipeline
operations, so it is difficult to synchronize access. For this reason, change the contents of the cache
control register simultaneously when disabling the cache or after the cache is disabled. After
changing the CCR contents, perform a CCR read.
370
Usage Notes
Standby
Cache Control Register
Figure 8.16 Address Mapping of 2-kbyte RAM in the Two-Way Mode
H'FFFFFFFF
H'C00003FF
H'C00007FF
H'C0000000
H'C0000400
H'00000000
Way 0
Way 1