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DSP56303 数据表(PDF) 128 Page - Freescale Semiconductor, Inc

部件名 DSP56303
功能描述  DSP56303 USER?셎 MANUAL
PDF  292 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

DSP56303 数据表(HTML) 128 Page - Freescale Semiconductor, Inc

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DSP56303 User’s Manual, Rev. 2
6-28
Freescale Semiconductor
Host Interface (HI08)
6.8 Programming Model Quick Reference
Table 6-19 summarizes the HI08 programming model.
ISR
HREQ
0
0
1 if TREQ is set;
0 otherwise
1 if TREQ is set;
0 otherwise
HF3 -HF2
0
0
—
—
TRDY
1
1
1
1
TXDE
1
1
1
1
RXDF
0
0
0
0
IVR
IV[0–7]
$0F
$0F
—
—
RX
RXH:RXM:RXL
empty
empty
empty
empty
TX
TXH:TXM:TXL
empty
empty
empty
empty
Note:
A long dash (—) denotes that the bit value is not affected by the specified reset.
Table 6-19. HI08 Programming Model, DSP Side
Register
Bit
Reset Type
Bit
No.
Bit
Name
Value
Function
HW/
SW
Indivi-
dual
STOP
HCR
0
HRIE
Receive Interrupt
Enable
0
1
HRRQ interrupt disabled
HRRQ interrupt enabled
0—
—
1
HTIE
Transmit
Interrupt Enable
0
1
HTRQ interrupt disabled
HTRQ interrupt enabled
0—
—
2
HCIE
Host Command
Interrupt Enable
0
1
HCP interrupt disabled
HCP interrupt enabled
0—
—
3
HF2
Host Flag 2
0
4
HF3
Host Flag 3
0
—
—
HPCR
0
HGEN
Host GPIO
Enable
0
1
GPIO signal disconnected
GPIO signals active
0—
—
1
HA8EN
Host Address
Line 8 Enable
0
1
HA8/A1 = GPIO
HA8/A1 = HA8
0—
—
2
HA9EN
Host Address
Line 9 Enable
0
1
HA9/A2 = GPIO
HA9/A2 = HA9
0—
—
3
HCSEN
Host Chip Select
Enable
0
1
HCS/A10 = GPIO
HCS/A10 = HCS
0—
—
Table 6-18. Host-Side Registers After Reset (Continued)
Register
Name
Register
Data
Reset Type
HW
Reset
SW
Reset
Individual Reset
STOP



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