Modular Input/Output Subsystem (MIOS14)
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
17-55
A value must be written to the MPWMCNTR (which writes the same value into the MPWMPERR) and a
pulse width value written to MPWMPULR, before the MPWMSCR is written to. The latter access
initializes the clock prescaler.
17.10.6 MPWMSM Registers
The privilege level to access to the MPWMSM registers depends on the MIOS14MCR[SUPV]. The
privilege level is unrestricted after reset and can be change to supervisor by software.
17.10.6.1 MPWMSM Registers Organization
The MPWMSM register map comprises four 16-bit register locations, as shown in
. All unused
bits return zero when read by the software. All register addresses in this section are specified as offsets
from the base address of the MPWMSM.
Table 17-25. MPWMSM Address Map
Address
Register
MPWMSM0
0x30 6000
MPWMSM0 Period Register (MPWMPERR)
See
for bit descriptions.
0x30 6002
MPWMSM0 Pulse Register (MPWMPULR)
See
for bit descriptions.
0x30 6004
MPWMSM0 Count Register (MPWMCNTR)
See
for bit descriptions.
0x30 6006
MPWMSM0 Status/Control Register (MPWMSCR)
See
for bit descriptions.
MPWMSM1
0x30 6008
MPWMSM1 Period Register (MPWMPERR)
0x30 600A
MPWMSM1 Pulse Register (MPWMPULR)
0x30 600C
MPWMSM1 Count Register (MPWMCNTR)
0x30 600E
MPWMSM1 Status/Control Register (MPWMSCR)
MPWMSM2
0x30 6010
MPWMSM2 Period Register (MPWMPERR)
0x30 6012
MPWMSM2 Pulse Register (MPWMPULR)
0x30 6014
MPWMSM2 Count Register (MPWMCNTR)
0x30 6016
MPWMSM2 Status/Control Register (MPWMSCR)
MPWMSM3
0x30 6018
MPWMSM3 Period Register (MPWMPERR)
0x30 601A
MPWMSM3 Pulse Register (MPWMPULR)
Summary of Contents for MPC561
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