s3c4510b Samsung Semiconductor, Inc., s3c4510b Datasheet - Page 382

• Manufacturer Part Number: s3c4510b
• Description: 16/32-bit Risc Microcontroller
• Manufacturer: Samsung Semiconductor, Inc.

I/O PORTS
12-4
31
O
T
E
N
1
30 29 28 27 26 25
O
E
N
T
0
[4:0] Control external interrupt request 0 input for port 8 (xIRQ0)
[4] Port 8 for xINTREQ0
[3] 0 = Active Low
[2] 0 = Filtering off
[1:0] 00 = Level detection
[9:5] Control external interrupt request 1 input for port 9 (xIRQ1)
(See control external interrupt request 1.)
[14:10] Control external interrupt request 2 input for port 10 (xIRQ2)
(See control external interrupt request 2.)
[19:15] Control external interrupt request 3 input for port 11 (xIRQ3)
(See control external interrupt request 3.)
[22:20] Control external DMA request 0 input for port 12 (DRQ0)
[22] Port 12 for nXDREQ0
[21] 0 = Filtering off
[20] 0 = Active Low
[25:23] Control external DMA request 1 input for port 13 (DRQ1)
[25] Port 13 for nXDREQ1
[24] 0 = Filtering off
[23] 0 = Active Low
[27:26] Control external DMA acknowledge 0 output for port 14 (DAK0)
[27] Port 14 for nXDACK0
[26] 0 = Active Low
[29:28] Control external DMA acknowledge 1 output for port 15 (DAK1)
[29] Port 15 for nXDACK1
[28] 0 = Active Low
[30] Control timeout 0 for port 16 (TOEN0)
[31] Control timeout 1 for port 17 (TOEN1)
D
A
K
1
0 = Disable
0 = Disable
0 = Disable
0 = Disable
0 = Disable
0 = Disable
0 = Disable
10 = Falling edge detection
D
A
K
0
Q
D
R
1
Figure 12-3. I/O Port Control Register (IOPCON)
23 22
D
R
Q
0
20 19
Q
R
X
3
I
1 = Enable
1 = Active High
1 = Filtering on
01 = Rising edge detection
11 = Both edge detection
1 = Enable
1 = Filtering on
1 = Active High
1 = Enable
1 = Filtering on
1 = Active High
1 = Enable
1 = Active High
1 = Enable
1 = Active High
1 = Enable
1 = Enable
15 14
R
Q
X
2
I
10 9
Q
X
R
1
I
5
4
3
X
R
Q
2
1
I
1
0
S3C4510B