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Host Port Signals
Host Interface (HI08)
6
-3
n
Dedicated interrupts:
– Separate request lines for each interrupt source
– Special host commands force DSP core interrupts under host processor control.
These commands are useful for
— Real-time production diagnostics
— Creation of a debugging window for program development
— Host control protocols
n
Interface capabilities:
– Glueless interface (no external logic required) to
— Motorola HC11
— Hitachi H8
— 8051 family
— Thomson P6 family
– Minimal glue logic (pull-ups, pull-downs) required to interface to
— ISA bus
— Motorola 68K family
— Intel X86 family
6.2
Host Port Signals
The host port signals are discussed in Chapter 2, Signals/Connections. Each host port signal
can be programmed as a host port signal or as a GPIO signal, PB[0–15]. See Table 6-1
through Table 6-3.
Table 6-1. HI08 Signal Definitions for Operational Modes
HI08 Port Signal
Multiplexed Address/Data Bus Mode
Non-multiplexed Bus Mode
GPIO Mode
HAD[0–7]
HAD[0–7]
H[0–7]
PB[0–7]
HAS/HA0
HAS/HAS
HA0
PB8
HA8/HA1
HA8
HA1
PB9
HA9/HA2
HA9
HA2
PB10
HCS/HA10
HA10
HCS/HCS
PB13
Содержание DSP56303
Страница 1: ...DSP56303 User s Manual 24 Bit Digital Signal Processor DSP56303UM AD Revision 1 January 2001 ...
Страница 52: ...JTAG OnCE Interface 2 22 DSP56303 User s Manual ...
Страница 114: ...General Purpose Input Output GPIO 5 10 DSP56303 User s Manual ...
Страница 212: ...GPIO Signals and Registers 8 26 DSP56303 User s Manual ...
Страница 268: ...Interrupt Equates A 22 DSP56303 User s Manual ...
Страница 306: ...Programming Sheets B 38 DSP56303 User s Manual ...
Страница 320: ...Index 14 DSP56303 User s Manual ...