Modular Input/Output Subsystem (MIOS14)
MPC561/MPC563 Reference Manual, Rev. 1.2
17-42
Freescale Semiconductor
17.9.6.3
MDASM Data B (MDASMBR) Register
Table 17-19. MDASMAR Bit Descriptions
Bits
Name
Description
0:15
AR
MDASMAR is the data register associated with channel A; its use varies with the different modes of
operation:
DIS mode: MDASMAR can be accessed to prepare a value for a subsequent mode selection.
IPWM mode: MDASMAR contains the captured value corresponding to the trailing edge of the measured
pulse.
IPM and IC modes: MDASMAR contains the captured value corresponding to the most recently detected
dedicated edge (rising or falling edge).
OCB and OCAB modes: MDASMAR is loaded with the value corresponding to the leading edge of the
pulse to be generated. Writing to MDASMAR in the OCB and OCAB modes also enables the
corresponding channel A comparator until the next successful comparison.
OPWM mode: MDASMAR is loaded with the value corresponding to the leading edge of the PWM pulse
to be generated.
NOTE:
In IC, IPM, or IPWM mode, when a read to register A or B occurs at the same time as a counter
bus capture into that register and the counter bus is changing value, then the counter bus capture to that
register is delayed.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
BR
SRESET
Undefined
Addr
0x30 605A, 0x30 6062, 0x30 606A, 0x30 6072, 0x30 607A,
0x30 60DA, 0x30 60E2, 0x30 60EA, 0x30 60F2, 0x30 60FA
Figure 17-23. MDASM DataB Register (MDASMBR)
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...