MPC8544DS Freescale Semiconductor, MPC8544DS Datasheet - Page 945

• Manufacturer Part Number: MPC8544DS
• Description: BOARD DEVELOPMENT SYSTEM 8544
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC III™r
• Type: MPUr

Specifications of MPC8544DS

• Contents: Board
• Processor To Be Evaluated: MPC8544E
• Data Bus Width: 32 bit
• Interface Type: Ethernet, I2C
• Operating Supply Voltage: - 0.3 V to + 1.1 V
• Leaded Process Compatible: Yes
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• For Use With/related Products: MPC8544
• For Use With: PPC8544EVTANG - EVAL MPC8544 783FCPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 16-2
Freescale Semiconductor
(
•
•
Channel continue capability. The channel continue capability allows software the flexibility of
having the DMA controller start with descriptors that have already been programmed while
software continues to build more descriptors in memory.
Channel abort capability. The software can abort a previously initiated transfer by setting the bit
MRn[CA]. The DMA controller terminates all outstanding transfers initiated by the channel
without generating any errors before entering an idle state.
Basic direct
Basic direct external control
Basic direct single-write start
Basic chaining
Basic chaining external control
Basic chaining single-write start
Extended direct
Extended direct external control
Extended direct single-write start
describes bit settings required for each DMA mode of operation.
Modes with Features
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
Ext (Extended) ExtD (extended direct)
B (Basic)
Mode
BD (basic direct)
BC (basic chaining)
ExtC (extended chaining)
Mode with One Additional Feature Mode with Two Additional Features
Table 16-1. Relationship of Modes and Features
Table 16-2. DMA Mode Bit Settings
MR n [XFE] MR n [CTM] MR n [SRW] MR n [CDSM/SWSM] MR n [EMS_EN]
0
0
0
0
0
1
1
1
0
Extended Direct Modes
Basic Chaining Modes
Basic Direct Modes
1
1
1
0
0
0
1
1
1
Reserved
Reserved
Reserved
BDS (BD single-write start)
BDE (BD external control)
BCE (BC external control)
BCS (BC single-write start)
ExtDS (ExtD single-write start)
ExtDE (ExtD external control)
ExtCE (ExtC external control)
ExtCS (ExtC single-write start)
0
0
1
0
0
1
1 or 0
1 or 0
0
0
0
0
1
0
0
0
1
0
0
1
0
0
1
0
DMA Controller
16-3