HD64F3642AHV Datasheet, PDF (220/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 8 I/O Ports
Pin
P81/FTOA
Pin Functions and Selection Method
The pin function depends on bit PCR81 in PCR8 and bit OEA in TOCR.
OEA
0
1
PCR81
Pin function
0
1
P81 input pin P81 output pin
*
FTOA output pin
P80/FTCI
The pin function depends on bit PCR80 in PCR8.
PCR80
0
1
Pin function
P80 input pin
P80 output pin
FTCI input pin
Legend: * Don’t care
8.8.4 Pin States
Table 8.22 shows the port 8 pin states in each operating mode.
Table 8.22 Port 8 Pin States
Pins
Reset
Sleep Subsleep Standby
P87 to P80/FTCI High-
Retains Retains
impedance previous previous
state
state
High-
impedance
Watch Subactive Active
Retains Functional Functional
previous
state
Rev. 6.00 Sep 12, 2006 page 198 of 526
REJ09B0326-0600