HD6432621 Hitachi, HD6432621 Datasheet - Page 613

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Mailbox (RAM) initialization
As message control/data registers (MCx[x], MDx[x]) are configured in RAM, their initial
values after powering on are undefined, and so bit initialization is necessary. Write 0s or 1s to
the mailboxes. See Mailbox (Message Control/Data (MCx[x], MDx[x]) Initial Setting in
15.3.2, Initialization after a Hardware Reset, for details.
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