Pin States - Renesas F-ZTAT H8 Series Hardware Manual

8. I/O Ports
Table 8.6 (b) H8/3854 Group Port 2 Pin Functions
Pin Pin Functions and Selection Method
P2 to P2 Input or output is selected as follows by the bit settings in PCR2.
7 1
PCR2n
Pin function
Note:
P2 /IRQ /ADTRG The pin function depends on bit IRQ4 in PMR2, bit TRGE in AMR, and bit
0 4
PCR2
IRQ4
PCR2
TRGE
Pin function
Note: When using as ADTRG input pin, clear bit IEN4 in IENR1 to 0, disabling
Legend: * Don't care
8.3.4

Pin States

H8/3857 Group port 2 pin states in each operating mode are shown in table 8.7 (a), and H8/3854
Group port 2 pin states in each operating mode in table 8.7 (b).
Table 8.7 (a) H8/3857 Group Port 2 Pin States
Pins Reset
P2 to P2 High-
7 2
impedance
P2 /UD
1
P2 /IRQ /
0 4
ADTRG
Table 8.7 (b) H8/3854 Group Port 2 Pin States
Pins Reset
P2 to P2 High-
7 1
impedance
P2 /IRQ /
0 4
ADTRG
Rev.3.00 Jul. 19, 2007 page 188 of 532
REJ09B0397-0300
P2
n = 7 to 1
in PCR2.
0
0
0
P2 input pin
0
IRQ interrupts.
4
Sleep Subsleep
Retains Retains
previous previous
state state
Sleep Subsleep
Retains Retains
previous previous
state state
0
input pin
n
0
1
*
output pin IRQ
P2
0
Standby Watch
High- Retains
impedance previous
state
Standby Watch
High- Retains
impedance previous
state
1
P2 output pin
n
1
*
0 1
input pin IRQ
/ADTRG
4 4
input pin
Subactive Active
Functional Functional
Subactive Active
Functional Functional