NEC 78K0 User Manual page 115
8-bit single-chip microcontrollers
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WR
PU
PU6
PU66
RD
WR
PORT
Output latch
(P66)
WR
PM
PM6
PM66
PU6:
Pull-up resistor option register 6
PM6: Port mode register 6
RD:
Read signal
WR××: Write signal
CHAPTER 4 PORT FUNCTIONS
Figure 4-18. Block Diagram of P66
Alternate
function
Selector
Selector
Memory expansion
mode register
(MEM)
*
User's Manual U15947EJ2V0UD
EV
DD
P-ch
P66/WAIT
115
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