h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 330

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 11 14-Bit PWM Timer (PWMX)
Rev. 3.00 Jan 25, 2006 page 278 of 872
REJ09B0286-0300
Bit
7
6
5, 4 —
3
2
1
0
Bit Name
—
PWME
OEB
OEA
OS
CKS
Initial Value
0
0
All 1
0
0
0
0
R/W
R/(W) Reserved
R/W
R
R/W
R/W
R/W
R/W
Description
The initial value should not be changed.
PWM Enable
Starts or stops the PWM D/A counter (DACNT).
0: DACNT operates as a 14-bit up-counter
1: DACNT halts at H'0003
Reserved
These bits are always read as 1 and cannot be
modified.
Output Enable B
Enables or disables output on PWM (D/A) channel B.
0: PWM (D/A) channel B output (at the PWX1 pin) is
1: PWM (D/A) channel B output (at the PWX1 pin) is
Output Enable A
Enables or disables output on PWM (D/A) channel A.
0: PWM (D/A) channel A output (at the PWX0 pin) is
1: PWM (D/A) channel A output (at the PWX0 pin) is
Output Select
Selects the phase of the PWM (D/A) output.
0: Direct PWM (D/A) output
1: Inverted PWM (D/A) output
Clock Select
Selects the PWM (D/A) resolution. If the system clock
( ) frequency is 10 MHz, resolutions of 100 ns, 200 ns,
6,400 ns, and 12,800 ns can be selected.
0: Operates at resolution (T) = system clock cycle time
1: Operates at resolution (T) = system clock cycle time
disabled
enabled
disabled
enabled
(t
(t
cyc
cyc
)
)
2,
64, and
128