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Application:
GPIO
Port E Control Register
(PCRE)
Y:$FFFF9F
Read/Write
Reset = $0
Port E Direction Register
Y:$FFFF9E
Read/Write
Reset = $0
PCn = 0 & PDCn = 0 -> Port pin PEn disconnected
PCn = 1 & PDCn = 0 -> Port pin PEn configured as input
PCn = 0 & PDCn = 1 -> Port pin PEn configured as output
PCn = 1 & PDCn = 1 -> Port pin configured as ESAI_1
Port E GPIO Data Register
Y:$FFFF9D
Read/Write
Reset = undefined
If port pin n is GPIO input, then PDn reflects the value on port pin n
if port pin n is GPIO output, then value written to PDn is reflected on port pin n
MOTOROLA
Port E (ESAI_1)
23
11
10
*
PC10
PC11
0
= Reserved, Program as 0
*
11
23
*
PDC11
PDC10
(PRRE)
0
= Reserved, Program as 0
*
23
11
10
*
PD11
PD10
(PDRE)
0
= Reserved, Program as 0
*
Figure D-36 GPIO Port E
DSP56367
Programmer's Reference
9
8
7
6
*
PC9
PC7
PC6
PC8
10
9
8
7
6
PDC9
PDC8
PDC6
PDC7
9
8
7 6
5
*
PD4 PD3
PD9
PD8
PD7
PD6
0
Date:
Programmer:
Sheet 4 of 4
5
4
3
2
1
0
*
PC4
0
0
PC1
PC3
PC0
5
4
3
2
1
0
*
*
PDC4
PDC3
0
0
PDC1 PDC0
2
4
3
1
0
*
PD0
PD1
0
D-51
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