Datasheet
78K0/Kx2-L CHAPTER 4 PORT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 154
Sep 27, 2010
Figure 4-20. Block Diagram of P41
Output latch
(P41)
Alternate
function
Alternate
function
Internal bus
P41/RTC1HZ (/SI11)
WR
PU
RD
WR
PORT
WRPM
PU41
PM41
P-ch
PM4
PU4
P4
V
DD
Selector
Selector
CSISEL
MUXSEL
Input signal
from P61/SI11
Figure 4-21. Block Diagram of P42
Alternate
function
Alternate
function
Internal bus
Output latch
(P42)
P42/PCL/SSI11/INTP6
WR
PU
RD
WR
PORT
WRPM
PU42
PM42
P-ch
Selector
PM4
PU4
P4
VDD
P4: Port register 4
PU4: Pull-up resistor option register 4
PM4: Port mode register 4
MUXSEL: Port alternate switch control register
RD: Read signal
WR××: Write signal