Cypress FM4 Series - Extended Pin Function Setting Register 11 (EPFR11)

CHAPTER 12: I/O Port
656 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
4.19 Extended Pin Function Setting Register 11 (EPFR11)
The EPFR11 register assigns functions to external bus peripheral pins.
Register Configuration
bit
31
30
29
28
27
26
25
24
Field
Reserved
Reserved
UED15B
Attribute
R/W
Initial value
0
bit
23
22
21
20
19
18
17
16
Field
UED14B
UED13B
UED12B
UED11B
UED10B
UED09B
UED08B
UED07B
Attribute
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value
0
0
0
0
0
0
0
0
bit
15
14
13
12
11
10
9
8
Field
UED06B
UED05B
UED04B
UED03B
UED02B
UED01B
UED00B
UEA07E
Attribute
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value
0
0
0
0
0
0
0
0
bit
7
6
5
4
3
2
1
0
Field
UEA06E
UEA05E
UEA04E
UEA03E
UEA02E
UEA01E
UECS0E
UEALEE
Attribute
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value
0
0
0
0
0
0
0
0
Register Function
[bit31:26] Reserved: Reserved bits
0b000000 is read from these bits.
When writing these bits, set them to 0b000000.
[bit25] Reserved: Reserved bit
The read value is undefined.
It is prohibited to write this bit.
[bit24] UED15B: UED15B Input/Output Select bit
Selects input/output for external bus data 15.
bit
Description
Reading
Reads out the register value.
Writing
0
Does not produce output for user external bus MADATA15. [Initial value]
Input of user external bus MADATA15 is connected to the pin.
1
Produces output for user external bus MADATA15.
Input of user external bus MADATA15 is connected to the pin.
[bit23] UED14B: UED14B Output Select bit
Selects output for external bus data 14.
bit
Description
Reading
Reads out the register value.