PXN20RM Datasheet, PDF (227/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

System Integration Unit (SIU)
Offset: SIU_BASE + 0x09C0
0
1
2
3
R
EMIOSSEL7
W
Reset 0
0
0
0
4
5
6
7
EMIOSSEL6
0
0
0
0
8
9
10
11
EMIOSSEL5
0000
Access: User read/write
12
13
14
15
EMIOSSEL4
0
0
0
0
16
R
W
Reset 0
17
18
19
EMIOSSEL3
20
21
22
23
EMIOSSEL2
24
25
26
27
EMIOSSEL1
0
0
0
0
0
0
0
0000
Figure 8-33. eMIOS Select Register 3 (SIU_EMIOS_SEL3)
28
29
30
31
EMIOSSEL0
0
0
0
0
Table 8-31. SIU_EMIOS_SELn Field Descriptions
Field
Description
EMIOSSELn eMIOS Channel[n] connection options.
0000–0011 eMIOS[n] input pin.
0100 DSPI_A deserialized output.
0101 DSPI_B deserialized output.
0110 DSPI_C deserialized output.
0111 DSPI_D deserialized output.
1000–1111 eMIOS[n] input pin.
8.3.2.26 External Interrupt Select Register 2A (SIU_ISEL2A)
The SIU_ISEL2A register selects the source for the external interrupts. Figure 8-72 shows how ISEL1,
ISEL2, and ISEL2A interact.
Offset: SIU_BASE + 0x09C4
R
W
Reset
0
1
ESEL15
0
0
2
3
ESEL14
0
0
4
5
ESEL13
0
0
6
7
ESEL12
0
0
8
9
ESEL11
00
10
11
ESEL10
00
Access: User read/write
12
13
14
15
ESEL9
ESEL8
0
0
0
0
R
W
Reset
16
17
ESEL7
0
0
18
19
ESEL6
20
21
ESEL5
22
23
ESEL4
24
25
ESEL3
26
27
ESEL2
28
29
ESEL1
0
0
0
0
0
0
000000
Figure 8-34. External Interrupt Select Register 2A (SIU_ISEL2A)
30
31
ESEL0
0
0
Freescale Semiconductor
PXN20 Microcontroller Reference Manual, Rev. 1
8-45