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H838532H Datasheet(PDF) 365 Page - Renesas Technology Corp

Part # H838532H
Description  16-Bit Single-Chip Microcomputer H8 Family / H8/300H Super Low Power Series
PDF  508 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H838532H Datasheet(HTML) 365 Page - Renesas Technology Corp

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Section 11 14-Bit PWM
Rev. 1.00 May 30, 2008 Page 345 of 484
REJ09B0436-0100
When 14-bit data is written to PWDRU and PWDRL, the register contents are latched in the PWM
waveform generator, updating the PWM waveform generation data. The 14-bit data should always
be written in the following sequence:
1. Write the lower 8 bits to PWDRL.
2. Write the upper 6 bits to PWDRU.
PWDRU and PWDRL are write-only registers. If they are read, all bits are read as 1.
Upon reset, PWDRU and PWDRL are initialized to H'C000.
11.2.3
Clock Stop Register 2 (CKSTPR2)
—
WDCKSTP PWCKSTP LDCKSTP
—
—
—
AECKSTP
7
6543210
1
1111111
—
R/W
R/W
R/W
———
R/W
Bit
Initial value
Read/Write
CKSTPR2 is an 8-bit read/write register that performs module standby mode control for peripheral
modules. Only the bit relating to the PWM is described here. For details of the other bits, see the
sections on the relevant modules.
Bit 1: PWM module standby mode control (PWCKSTP)
Bit 1 controls setting and clearing of module standby mode for the PWM.
PWCKSTP
Description
0
PWM is set to module standby mode
1
PWM module standby mode is cleared
(initial value)



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