Technical information

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IMPORTANT
(13) A-D input group select function
When using the A-D input group select function, the following settings are required.
i) When selecting port P0 for A-D input
• Set the whole 8-bit of direction registers P100--P107 to input.
• Set the pullup control registers of P100--P107 to no-pullup.
• P100--P107 cannot be used as an input pin of I/O port and key input interrupt function.
ii) When selecting port P2 for A-D input
• Set the whole 8-bit of direction registers P100--P107 to input.
• Set the pullup control registers of P100--P107 to no-pullup.
•P100--P107 cannot be used as input pins of I/O port and key input interrupt function.
iii) When selecting port P10 for A-D input
• There is no restriction.
(14) Outputs of the actual MCU and this product
Table 1.3 Differences of outputs between actual MCU and this product (when executing program)
Access area Signal Actual MCU
This product
∗ for difference
Address
BHE*
Data
RD*
WR*
CS*
ALE
Address
BHE*
Data
RD*
WR*
CS*
ALE
Address
BHE*
Data
RD*
WR*
CS*
ALE
SFR area
(MAP = EXT)
Internal RAM
Internal ROM
External area
Outputs
Does not output
(fixed to "High")
Outputs
Floating
Does not output
(fixed to "High")
Does not output
(fixed to "High")
Outputs
Outputs
Outputs
(inputs external data at read cycle)
Outputs
("Low" at write cycle,
"Low" at read cycle)
Outputs
Outputs
∗
∗
∗
Outputs
(floating during read cycle)
Outputs
("Low" at write cycle,
"Low" at read cycle)
Does not output
(fixed to "High")
Does not output
(fixed to "Low")
Outputs
Outputs
(inputs external data at read cycle)
Outputs
("Low" at write cycle,
"Low" at read cycle)
Outputs
Outputs
Retains previous status
Floating
Does not output
(fixed to "High")
Does not output
(fixed to "High")
Does not output
(fixed to "Low")
Outputs
Outputs
Outputs
(floating during read cycle)
Outputs
("Low" at write cycle,
"Low" at read cycle)