7 I/O PORTS (PPORT)
S1C31D50/D51 TECHNICAL MANUAL
Seiko Epson Corporation
7-11
(Rev. 2.00)
P Port Interrupt Flag Group Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
PPORTINTFGRP 15–13 –
0x0
–
R
–
12 PCINT
0
H0
R
11 PBINT
0
H0
R
10 PAINT
0
H0
R
9
P9INT
0
H0
R
8
P8INT
0
H0
R
7
P7INT
0
H0
R
6
P6INT
0
H0
R
5
P5INT
0
H0
R
4
P4INT
0
H0
R
3
P3INT
0
H0
R
2
P2INT
0
H0
R
1
P1INT
0
H0
R
0
P0INT
0
H0
R
*
1: Only the bits corresponding to the port groups that support interrupts are provided.
Bits 15–13 Reserved
Bits 12–0 P
x
INT
These bits indicate that P
x
port group includes a port that has generated an interrupt.
1 (R):
A port generated an interrupt
0 (R):
No port generated an interrupt
The PPORTINTFGRP.P
x
INT bit is cleared when the interrupt flag for the port that has generated an
interrupt is cleared.