MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 554

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

15.11 MIOS Double Action Submodule (MDASM)
MPC555
USER’S MANUAL
The MIOS double action submodule (MDASM) provides two consecutive 16-bit input
captures or two consecutive 16-bit output compare functions that can occur automat-
ically without software intervention. The input edge detector is programmable to trigger
the capture function to occur on the desired edge. The output flip-flop is set by one of
the output compares and is reset by the other one. In all modes except disable mode,
an optional interrupt is available to the software. Software selection is provided to se-
lect which of the incoming 16-bit counter buses is used for the input capture or the out-
put compare.
The MDASM has six different software selectable modes:
The MDASM has three data registers that are accessible to the software from the var-
ious modes. For some of the modes, two of the registers are cascaded together to pro-
vide double buffering. The value in one register is transferred to the other register
automatically at the correct time so that the minimum pulse (measurement or genera-
tion) is just one 16-bit counter bus count.
Refer to
• Disable mode
• Pulse width measurement
• Period measurement
• Input capture mode
• Single pulse generation
• Continuous pulse generation
/
MPC556
Table 15-36
MODULAR INPUT/OUTPUT SUBSYSTEM (MIOS1)
for the MDASM relative I/O pin implementation.
Table 15-15 MMCSMCR CP and
Prescaler Value
MPWMSMSCR CP Values
(CP in hex)
......
FD
FC
FF
FE
FB
FA
F9
F8
02
01
00
Rev. 15 October 2000
MIOS Prescaler Clock
254 (2^8 -2)
255 (2^8 -1)
Divided by
256 (2^8)
........
1
2
3
4
5
6
7
8
MOTOROLA
15-18