MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 330

• 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

MPC555
USER’S MANUAL
Figure 9-26
tocol.
Table 9-4 Priority Between Internal and External Masters over External Bus
NOTES:
Instruction access
1. External master will be granted external bus ownership if EARP is greater than the internal access pri-
2. Parked access is instruction or data access from the RCPU which is initiated on the internal bus without
3. Refer to
Parked access
External access
/
ority.
requesting it first in order to improve performance.
Data access
MPC556
Type
6.13.1.1 SIU Module Configuration
illustrates the internal finite-state machine that implements the arbiter pro-
2
external → external/internal
Internal → external
Internal → external
Internal → external
EXTERNAL BUS INTERFACE
Direction
Rev. 15 October 2000
Register.
EARP
3
(could be programmed to 0 – 7)
Priority
0
3
4
MOTOROLA
1
9-34