Cypress FM4 Series - Extended Pin Function Setting Register 04 (EPFR04)

CHAPTER 12: I/O Port
624 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
4.12 Extended Pin Function Setting Register 04 (EPFR04)
The EPFR04 register assigns functions to pins of ch.0, ch.1, ch.2, and ch.3 of the base timer.
Register Configuration
bit
31
30
29
28
27
26
25
24
Field
Reserved
TIOB3S
TIOA3E
TIOA3S
Attribute
-
R/W
R/W
R/W
Initial value
-
00
00
00
bit
23
22
21
20
19
18
17
16
Field
Reserved
TIOB2S
TIOA2E
Reserved
Attribute
-
R/W
R/W
-
Initial value
-
00
00
-
bit
15
14
13
12
11
10
9
8
Field
Reserved
TIOB1S
TIOA1E
TIOA1S
Attribute
-
R/W
R/W
R/W
Initial value
-
00
00
00
bit
7
6
5
4
3
2
1
0
Field
Reserved
TIOB0S
TIOA0E
Reserved
Attribute
-
R/W
R/W
-
Initial value
-
000
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] TIOB3S: TIOB3 Input Select bits
Selects input for TIOB3.
bit
Description
Reading
Reads out the register value.
Writing
00
Uses TIOB3_0 at the input pin of BT ch.3 TIOB. [Initial value]
01
Same as Writing 00.
10
Uses TIOB3_1 at the input pin of BT ch.3 TIOB.
11
Uses TIOB3_2 at the input pin of BT ch.3 TIOB.
[bit27:26] TIOA3E: TIOA3 Output Select bits
Selects output for TIOA3.
bit
Description
Reading
Reads out the register value.
Writing
00
Does not produce output for BT ch.3 TIOA. [Initial value]
01
Uses TIOA3_0 at the output pin of BT ch.3 TIOA.
10
Uses TIOA3_1 at the output pin of BT ch.3 TIOA.
11
Uses TIOA3_2 at the output pin of BT ch.3 TIOA.