Cypress FM4 Series - Extended Pin Function Setting Register 14 (EPFR14)

CHAPTER 12: I/O Port
670 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
4.22 Extended Pin Function Setting Register 14 (EPFR14)
EPFR14 register sets the function assignment to QPRC/Ethernet-MAC pins.
Register Configuration
bit
31
30
29
28
27
26
25
24
Field
Reserved
E_SPLC
E_PSE
E_CKE
E_MD1B
E_MD0B
Attribute
-
R/W
R/W
R/W
R/W
R/W
Initial value
-
00
0
0
0
0
bit
23
22
21
20
19
18
17
16
Field
E_MC1B
E_MC0E
E_TE1E
E_TE0E
E_TD1E
E_TD0E
Reserved
Attribute
R/W
R/W
R/W
R/W
R/W
R/W
-
Initial value
0
0
0
0
0
0
-
bit
15
14
13
12
11
10
9
8
Field
Reserved
Attribute
-
Initial value
-
bit
7
6
5
4
3
2
1
0
Field
Reserved
QZIN2S
QBIN2S
QAIN2S
Attribute
-
R/W
R/W
R/W
Initial value
-
00
00
00
Register Function
[bit31:30] Reserved: Reserved bits
0b00 is read out from these bits.
When writing these bits, set them to 0b00.
[bit29:28] E_SPLC: Input cutoff Select bit in Standby of input Pin for Ethernet-MAC
It selects input interrupt in standby of the Ethernet-MAC input pin.
bit
Description
Reading
Reads out the register value.
Writing
00
All input pins are cut off in standby. [Initial value]
01
Input pins used by MII ch.0 are not cut off in standby.
10
Input pins used by RMII ch.0 are not cut off in standby.
11
Input pins used by RMII ch.1 are not cut off in standby.
[bit27] E_PSE: PPS0_PPS1 Output Select bit for Ethernet-MAC
Selects output for PPS0_PPS1.
bit
Description
Reading
Reads out the register value.
Writing
0
E_PPS0_PPS1 is not output. [Initial value]
1
E_PPS0_PPS1 is output. [Initial value]