Motorola DSP56305 User Manual page 647

HI32 Registers - Quick Reference (Sheet 5 of 8)
Reg Bit #
Mnemonic Name
DRXR 23- DSP Receive Data FIFO
0
DTXM 23- DSP Master Transmit Data
0 FIFO
DTXS 23- DSP Slave
0 Transmit Data FIFO
DATH 23- DAT23-DAT GPIO Signal Data
0 0
DIRH 23- DIR23-DIR0 GPIO Signal Direction
0
Host Side
HCTR TREQ Transmit Request
Enable
RREQ Receive Request Enable
HF2-HF0 Host Flags
DMAE DMA Enable (ISA/EISA)
7 SFT Slave Fetch Type
9- HTF1-HTF0 Host Transmit Data Transfer
8 Format
12- HRF1-HRF Host Receive Data Transfer
11 0 Format
16- HS2-HS0 Host Semaphores
14
19 TWSD Target Wait State Disable
MOTOROLA
Val Function
[0] Input
[1] Output
0 HTRQ interrupt disabled
1 HTRQ interrupt enabled
0 HRRQ interrupt disabled
1 HRRQ interrupt enabled
0 HI32 does not support DMA
1 transfers
HI32 supports ISA-DMA type
transfers
0 Pre-fetch
1 Fetch
PCI UB
00 32 bit mode24 bit mode
01 3 LSBs2 Right, zero ext.
10 3 LSBs2 Right, sign ext.
11 3 MSbs2 Left, zero filled
PCI UB
00 32 bit mode24 bit mode
01 3 Right, zero ext.2 LSBs
10 3 Right, sign ext.2 LSBs
11 3 Left, zero filled2 middle bytes
0 HI32 target will insert up to 8
1 w.s.
HI32 target will not insert wait
states
DSP56305 User's Manual
PROGRAMMING REFERENCE
Comments Reset Type
HS PH PS
empty
empty
empty
$000000 - -
$000000 - -
- 0 -
- 0 -
- 0 -
- 0 -
- 0 -
- $0 -
- $0 -
- 0 -
- 0 -
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