Section 9 14-Bit PWM Timer (PWMX)
Rev. 1.00 Mar. 12, 2008 Page 362 of 1178
REJ09B0403-0100
9.3.3
PWMX (D/A) Control Register (DACR)
DACR enables the PWM outputs, and selects the output phase and operating speed.
Bit Bit
Name
Initial
Value R/W Description
7
0
R/W
Reserved
The initial value should not be changed.
6 PWME 0 R/W
PWMX
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
5, 4
All
1
R
Reserved
These bits are always read as 1 and cannot be modified.
3
OEB
0
R/W
Output Enable B
Enables or disables output on PWMX (D/A) channel B.
0: PWMX (D/A) channel B output (at the PWX1, PWX3
pins) is disabled
1: PWMX (D/A) channel B output (at the PWX1, PWX3
pins) is enabled
2
OEA
0
R/W
Output Enable A
Enables or disables output on PWMX (D/A) channel A.
0: PWMX (D/A) channel A output (at the PWX0, PWX2
pin) is disabled
1: PWMX (D/A) channel A output (at the PWX0, PWX2
pins) is enabled
1 OS
0 R/W
Output
Select
Selects the phase of the PWMX (D/A) output.
0: Direct PWMX (D/A) output
1: Inverted PWMX (D/A) output
0 CKS 0 R/W
Clock
Select
Selects the PWMX (D/A) resolution. Eight kinds of
resolution can be selected.
0: Operates at resolution (T) = system clock cycle time
(t
cyc
)
1: Operates at resolution (T) = system clock cycle time
(t
cyc
)
×
2,
×
64,
×
128,
×
256,
×
1024,
×
4096, and
×
16384.
Summary of Contents for H8S Family
Page 2: ...Rev 1 00 Mar 12 2008 Page ii of xIviii...
Page 8: ...Rev 1 00 Mar 12 2008 Page viii of xIviii...
Page 28: ...Rev 1 00 Mar 12 2008 Page xxviii of xIviii...
Page 48: ...Rev 1 00 Mar 12 2008 Page xlviii of xIviii...
Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...