NEC PD750008 - Manual (Page 64)

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µPD750008 USER'S MANUAL
Figure 3-7. µPD750008 I/O Map (5/5)
Notes 1. Bit 1 can be read or written only in serial operation enable mode. It can be read when four-bit
manipulation is performed.
2. KR0 to KR7 can be read (R) bit by bit. When inputting 4 bits at a time, specify PORT6 or PORT7.
FF0H
FF1H
FF2H
FF3H
FF4H
FF5H
FF6H Note 2
FF7H Note 2
FF8H
Address
b3 b2 b1 b0
Hardware name (symbol)
R/ W
1 bit 4 bits 8 bits
Remarks
Number of bits that can be
manipulated
R/W
R
R/ W
R/ W
R/ W
R/ W
R/ W
R/ W
R/ W
Bit
manipulation
addressing
fmem.bit
pmem.@L
–
–
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 8
KR3 KR2 KR1
(PORT0)
(PORT1)
(PORT2)
(PORT3)
(PORT4)
(PORT5)
(PORT8)
KR0
Port 6
KR7 KR6 KR5 KR4
Port 7 (PORT7)
(PORT6)
SCKP
(R) (R/ W) (R)
Note 1
–