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Chapter 3 MB91460 Series Basic Information
2.I/O Map
2. I/O Map
This section shows the association between memory space and each register of peripheral resources.
Table convention
Note: Bit value of register shows initial values as follows.
•"1": Initial value is "1".
"0": Initial value is "0".
"X": Initial value is indeterminate.
"N/A": No physical register exists in the position.
Do not use other data access attributes to access data.
Address Address offset/Register name Block
+0 +1 +2 +3
000000HPDRD[R/W] PDR1[R/W] PDR2[R/W] PDR3[R/W]
xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx T-unit
Port data register
Read/Write attribute (R: Read, W: Write)
Register initial value ("0", "1", "X" : undefined, "-" : not implemented)
Register name (First column register is 4n address,
Second column register is 4n+2 address...)
Leftmost register address
(For Word access, first register becomes MSB side of the data.)
MSB LSB