Modular Input/Output Subsystem (MIOS14)
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
17-39
In the OPWM mode, the WOR bit selects whether the output is totem pole driven or open-drain.
17.9.4
Modular I/O Bus (MIOB) Interface
•
The MDASM is connected to all the signals in the read/write and control bus, to allow data transfer
from and to the MDASM registers, and to control the MDASM in the different possible situations.
•
The MDASM is connected to four 16-bit counter buses available to that submodule instance, so
that the MDASM can select by software which one to use.
•
The MDASM uses the request bus to transmit the FLAG line to the interrupt request submodule
(MIRSM).
17.9.5
Effect of RESET on MDASM
When the reset signal is asserted, the MDASM registers are reset according to the values specified in
Section 17.9.6, “MDASM Registers
17.9.6
MDASM Registers
The privilege level to access the MDASM registers depends on the MIOS14MCR[SUPV]. The privilege
level is unrestricted after reset and can be changed to supervisor by software.
17.9.6.1
MDASM Registers Organization
The MDASM register map comprises four 16-bit register locations. As shown in below, the register block
contains four MDASM registers. Note that the MDASMSCRD is the duplication of the MDASMSCR.
This is done to allow 32-bit aligned accesses.
WARNING
The user should not write directly to the address of the MDASMSCRD. This
register’s address may be reserved for future use and should not be accessed
by the software to ensure future software compatibility.
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 MDASM.
Table 17-18. MDASM Address Map
Address
Register
MDASM11
0x30 6058
MDASM11 Data A Register (MDASMAR)
See
Section 17.9.6.2, “MDASM Data A (MDASMAR) Register
” for bit
descriptions.
0x30 605A
MDASM11 Data B Register (MDASMBR)
See
Section 17.9.6.3, “MDASM Data B (MDASMBR) Register
” for bit
descriptions.
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...