Rev. 2.0, 11/00, page 408 of 1037
19.2.2
8-bit PWM Control Register (PW8CR)
0
0
1
0
R/W
2
0
R/W
3
0
4
5
6
7
—
—
—
—
—
—
—
—
PWC3
PWC2
PWC1
PWC0
R/W
R/W
1
1
1
1
Bit :
Initial value :
R/W :
The 8-bit PWM control register (PW8CR) is an 8-bit readable/writable register that controls
PWM functions. PW8CR is initialized to H'00 by a reset.
Bits 7 to 4: Reserved
They are always read as 1. Writes are disabled.
Bits 3 to 0: Output Polarity Select (PWC3 to PWC0)
These bits select the output polarity of PWMn pin between positive or negative (reverse).
Bit n
PWCn
Description
0
PWMn pin output has positive polarity
(Initial value)
1
PWMn pin output has negative polarity
(n = 3 to 0)
Содержание Hitachi H8S/2191
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