MCF5272CVM66 Datasheet, PDF (397/544 Pages) Freescale Semiconductor, Inc – MCF5272 ColdFire® Integrated Microprocessor

General Purpose I/O Module
17.2.1 Port A Control Register (PACNT)
PACNT is used to configure pins that source signals multiplexed with GPIO port A.
31
30
Field PACNT15
Reset
R/W
29
28
PACNT14
27
26
PACNT13
25
24
PACNT12
23
22
PACNT11
0000_0000_0000_0000
Read/Write
21
20
PACNT10
19
18
PACNT9
17
16
PACNT8
15
14
Field PACNT7
Reset
R/W
Addr
13
12
PACNT6
11
10
PACNT5
9
8
PACNT4
7
6
PACNT3
5
4
PACNT2
0000_0000_0000_0000
Read/Write
MBAR + 0x0080
Figure 17-1. Port A Control Register (PACNT)
3
2
PACNT1
1
0
PACNT0
Table 17-3 describes PACNT fields. Table 17-4 provides the same information organized by function.
Table 17-3. PACNT Field Descriptions
Bits
31–30
29–28
27–26
25–24
23–22
21–20
19–18
Name
PACNT15
PACNT14
PACNT13
PACNT12
PACNT11
PACNT10
PACNT9
Description
Configure pin M3. If this pin is programmed to function as INT6, it is not available as a GPIO.
00 PA15
01 DGNT1
1x Reserved
Configure pin M2
00 PA14
01 DREQ1
1x Reserved
Configure pin L3
00 PA13
01 DFSC3
1x Reserved
Configure pin L2
00 PA12
01 DFSC2
1x Reserved
Configure pin L1
00 PA11
01 Reserved
10 QSPI_CS1
11 Reserved
Configure pin K5
00 PA10
01 DREQ0
1x Reserved
Configure pin J3
00 PA9
01 DGNT0
1x Reserved
MCF5272 ColdFire^® Integrated Microprocessor User’s Manual, Rev. 3
Freescale Semiconductor
17-3