Datasheet

78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 121
Feb 28, 2012
Figure 4-16 Block Diagram of P34 (1/2)
(1) 78K0/IY2, 78K0/IA2, 78K0/IB2 (32 Pins)
WR PU
RD
PU3
WR
PORT
WR PM
PU34
V DD
P-ch
TMHSEL1
Note
MUXSEL
TMHSEL0
Input signal from P00/TI51
Note
Output signal to
P00/TOH1
Note
P34/TOX11/INTP4/<TOH1>/<TI51>
Selector
Selector
TM5SEL1
Note
TM5SEL0
MUXSEL
Alternate
function (INTP4)
Alternate
function (TI51)
Selector
PM3
Output latch
(P34)
PM34
P3
Alternate
function (TOX11)
Alternate
function (TOH1)
Internal bus
P3: Port register 3
PU3: Pull-up resistor option register 3
PM3: Port mode register 3
RD: Read signal
WR: Write signal
Note 78K0/IA2 and 78K0/IB2 (32 Pins) only