r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 532

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 12 Port Output Enable (POE)
Notes: 1. Writing 0 to this bit after reading it as 1 clears the flag and is the only allowed way.
12.3.4
OCSR2 is a 16-bit readable/writable register that controls the enable/disable of both output level
comparison and interrupts, and indicates status.
Initial value:
Rev. 1.00 Sep. 21, 2007 Page 506 of 1124
REJ09B0402-0100
Bit
1, 0
Bit
15
Notes:
R/W:
Bit:
1.
2.
2. Can be modified only once after a power-on reset.
R/(W)*
Bit Name
POE4M[1:0] 00
Bit Name
OSF2
OSF2
Writing 0 to this bit after reading it as 1 clears the flag and is the only allowed way.
Can be modified only once after a power-on reset.
Output Level Control/Status Register 2 (OCSR2)
15
0
1
14
R
0
-
13
Initial
value
0
R
0
-
Initial
value
12
R
0
-
R/W
R/W*
R/W
R/(W)*
11
R
0
-
2
10
R
0
-
1
Description
POE4 mode 1 and 0
These bits select the input mode of the POE4 pin.
00: Accept request on falling edge of POE4 input
01: Accept request when POE4 input has been sampled
10: Accept request when POE4 input has been sampled
11: Accept request when POE4 input has been sampled
Description
Output Short Flag 2
This flag indicates that any one of the three pairs of
MTU2S 2-phase outputs to be compared has
simultaneously become an active level.
[Clearing condition]
•
[Setting condition]
•
R/W*
OCE2
9
0
By writing 0 to OSF2 after reading OSF2 = 1
When any one of the three pairs of 2-phase outputs
has simultaneously become an active level
for 16 Pφ/8 clock pulses and all are at a low level.
for 16 Pφ/16 clock pulses and all are at a low level.
for 16 Pφ/128 clock pulses and all are at a low level.
2
OIE2
R/W
8
0
R
7
0
-
R
6
0
-
R
5
0
-
R
4
0
-
R
3
0
-
R
2
0
-
R
1
0
-
R
0
0
-