HD6433937 Datasheet, PDF (184/521 Pages) Hitachi Semiconductor – Hardware Manual

8.10.3 Pin Functions
Table 8-27 shows the port 9 pin functions.
Table 8-27 Port 9 Pin Functions
Pin
P9₃ to P9₀
Pin Functions and Selection Method
The pin function depends on bit PCR9_n in PCR9.
PCR9_n
Pin function
0
P9_n input pin
(n = 3 to 0)
1
P9_n output pin
8.10.4 Pin States
Table 8-28 shows the port 9 pin states in each operating mode.
Table 8-28 Port 9 Pin States
Pins
P9₃ to P9₀
Reset
Sleep
High-
Retains
impedance previous
state
Subsleep
Retains
previous
state
Standby
High-
impedance
Watch
Retains
previous
state
Subactive Active
Functional Functional
172