PXN20RM Datasheet, PDF (833/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

Enhanced Modular Input/Output Subsystem (eMIOS200)
28.3.2.3 eMIOS200 Output Update Disable Register (EMIOS_OUDR)
Offset: EMIOS_BASE + 0x0008
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
OU31 OU30 OU29 OU28 OU27 OU26 OU25 OU24 OU23 OU22 OU21 OU20 OU19 OU18 OU17 OU16
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
R
OU15 OU14 OU13 OU12 OU11 OU10 OU9
W
Reset 0
0
0
0
0
0
0
23
OU8
0
24
OU7
0
25
OU6
0
26
OU5
0
27
OU4
0
28
OU3
0
29
OU2
0
30
OU1
0
31
OU0
0
Figure 28-5. eMIOS200 Output Update Disable Register (EMIOS_OUDR)
Table 28-7. EMIOS_OUDR Field Descriptions
Field
Description
OU[31:0]
Channel [n] Output Update Disable Bits. When running MCB mode or an output mode, values are written to
registers A2 and B2. OU[n] bits are used to disable transfers from registers A2 to A1 and B2 to B1. Each bit
controls one channel.
0 Transfer enabled. Depending on the operation mode, transfer may occur immediately or in the next period.
Unless stated otherwise, transfer occurs immediately.
1 Transfers disabled.
Note: The PXN21 implements all 32 channels, comprising bits OU31 through OU0. The PXN20 implements only
24 channels, comprising bits OU23 through OU0.
28.3.2.4 eMIOS200 Disable Channel Register (EMIOS_UCDIS)
Offset: EMIOS_BASE + 0x000C
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
UCDIS[31:16]
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
UCDIS[15:0]
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 28-6. eMIOS200 Enable Channel Register (EMIOS_UCDIS)
Table 28-8. EMIOS_UCDIS Field Descriptions
Field
UCDIS[31:0]
Description
Enable Channel [n] Bit. The UCDIS[n] bit is used to disable each of the unified channels by stopping its
respective clock.
0 UC [n] enabled.
1 UC [n] disabled.
Note: The PXN21 implements all 32 channels, comprising bits UCDIS31 through UCDIS0. The PXN20
implements only 24 channels, comprising bits UCDIS23 through UCDIS0.
Freescale Semiconductor
PXN20 Microcontroller Reference Manual, Rev. 1
28-11