M30622 Mitsubishi, M30622 Datasheet - Page 37

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Bus Control
Table 1.12.6. External bus status when the internal area is accessed
Note 1: In M30623(80-pin package), CS signals have no corresponding external pin.
(7) External bus status when the internal area is accessed
(8) BCLK output
Item
Address bus
Data bus
RD, WR, WRL, WRH
BHE
CS
ALE
Table 1.12.6 shows the external bus status when the internal area is accessed.
When set to “1”, the output floating.
Note: Before attempting to change the contents of the processor mode register 0, set bit 1 of the protect
The user can choose the BCLK output by use of bit 7 of processor mode register 0 (0004
register (address 000A
When read
When write
SFR accessed
Address output
Floating
Output data
RD, WR, WRL, WRH output
BHE output
Output "H"
Output "L"
16
) to “1”.
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37
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Internal ROM/RAM accessed
Maintain status before accessed
address of external area
Floating
Undefined
Output "H"
Maintain status before accessed
status of external area
Output "H"
Output "L"
Mitsubishi microcomputers
M16C / 62T Group
16
) (Note).