mcf5307cft90b Freescale Semiconductor, Inc, mcf5307cft90b Datasheet - Page 375

• Manufacturer Part Number: mcf5307cft90b
• Description: Mcf5307 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

As shown in Table 17-7, if the DMA is bus master (TT = 01), TM[2:0] indicate the type of
DMA access and provide the DMA acknowledgement information for channels 0 and 1.
Table 17-9 shows TM[2:0] encodings for emulator mode accesses.
The TM signals indicate user or data transfer types during emulation transfers, while for
interrupt acknowledge transfers, the TM signals carry the interrupt level being
acknowledged; see Table 17-10.
Table 17-6. TM[2:0] Encodings for TT = 00 (Normal Access) (Continued)
Table 17-9. TM[2:0] Encodings for TT = 10 (Emulator Access)
Table 17-10. TM[2:0] Encodings for TT = 11 (Interrupt Level)
Table 17-8. TM[
When TT= 01, the TM0 encoding is independent from TM[2:1]
encoding.
Table 17-7. TM
Freescale Semiconductor, Inc.
000–100
TM[2:0]
For More Information On This Product,
TM[2:1]
TM0
101
110
111
0
1
TM[2:0]
00
01
10
11
000
001
2:
Chapter 17. Signal Descriptions
0
TM[2:0]
1] Encoding for DMA as Master (TT = 01)
110
111
Encoding for DMA as Master (TT = 01)
Single-address access negated
Single-address access
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DMA acknowledges negated
DMA acknowledge, channel 0
DMA acknowledge, channel 1
Reserved
Reserved
Emulator mode data access
Emulator mode code access
Reserved
CPU Space
Interrupt level 1 acknowledge
Transfer Modifier Encoding
Transfer Modifier Encoding
NOTE:
Supervisor code access
Reserved
Transfer Modifier
Transfer Modifier
Transfer Modifier
MCF5307 Bus Signals
17-11