Section 10 Port Output Enable (POE)
Rev. 3.00 Sep. 27, 2007 Page 393 of 758
REJ09B0243-0300
10.3.5
Port Output Enable Control Register 1 (POECR1)
POECR1 is an 8-bit readable/writable register that controls high-impedance state of the pins.
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R
R
R
R
R/W
*
R/W
*
R/W
*
R/W
*
Note:
Can be modified only once after a power-on reset.
*
-
-
-
-
MTU2
PE3ZE
MTU2
PE2ZE
MTU2
PE1ZE
MTU2
PE0ZE
Bit Bit
Name
Initial
value
R/W Description
7 to 4
—
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
3 MTU2PE3ZE
0 R/W
*
MTU2 PE3 High-Impedance Enable
This bit specifies whether to place the PE3/TIOC1D
pin for channel 0 in the MTU2 in high-impedance
state when either POE8F or MTU2CH0HIZ bit is set
to 1.
0: Does not place the pin in high-impedance state
1: Places the pin in high-impedance state
2 MTU2PE2ZE
0 R/W
*
MTU2 PE2 High-Impedance Enable
This bit specifies whether to place the PE2/TIOC1C
pin for channel 0 in the MTU2 in high-impedance
state when either POE8F or MTU2CH0HIZ bit is set
to 1.
0: Does not place the pin in high-impedance state
1: Places the pin in high-impedance state
1 MTU2PE1ZE
0 R/W
*
MTU2 PE1 High-Impedance Enable
This bit specifies whether to place the PE1/TIOC1B
pin for channel 0 in the MTU2 in high-impedance
state when either POE8F or MTU2CH0HIZ bit is set
to 1.
0: Does not place the pin in high-impedance state
1: Places the pin in high-impedance state
Содержание SH7124 R5F7124
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