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B-15, Figure b-15, Host command vector register (hcvr) – Motorola DSP56301 User Manual

Page 339: Host processor (hi32)

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Programming Sheets

Programming Reference

B

-27

Figure B-15. Host Command Vector Register (HCVR)

Host Processor (HI32)

HI32 Command Vector Register (HCVR)

Reset = $00000000

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

0

19 18 17 16

23 22 21 20

Host Non-Maskable Interrupt, Bit 15
0 = Host Command Interrupt normal priority

Selects host command interrupt address.
Caution: Never use the reset location $0.

Host Command Vector, Bits 7–1

1 = Host Command Interrupt highest priority

*

= Reserved, Program as 0

*

0

*

0

Read/Write

Application:

Date:

Programmer:

Sheet 6 of 10

27 26 25 24

31 30 29 28

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

*

0

HNMI

HV6

HV5

HV4

HV3

HV2

HV1

HV0

Transmit Request Enable, Bit 0

0 = Transmit requests disabled
1 = Transmit requests enabled

Modes: UBM and PCI

*

0

*

0

*

0

*

0

*

0

*

0

*

0

HC

Modes: UBM and PCI

Modes: UBM and PCI