Intel mcs-48 manual Intellec Prompt, Prompt 48 Commands and Functions

INTELLEC PROMPT 48

Cable Interface

An optional cable, PROMPT-SER, directly connects the PROMPT system to virtually any terminal via a rear access slot.

Key	Funcllon	Operallon
I}]	Port 2 map	Allows specification of direction of each pin
		on port 2. Port 2 is multiplexed to address
		external program memory and expand 110.
		Thus it must\be buffered; the P2 map com-
		mand establishes the direction of buffering.

[}]Program EPROM Programs 8748 EPROMs.

~	Byte search	Sweeps through register, data, or program
	(with optional	memory searching for byte matches. Start·
	mask)	ing and ending memory addresses are spe-
		cified.
~	Word search	Sweeps through register, data, or program
	(with optional	memory searching for word matches. Start-
	mask)	ing and ending memory addresses are spe-
		cified.

[!]Hex calculator Computes hexadecimal sums and differ- ences.

I2l	8748 program	Sim ilar to program EPROM, but ensures that
	lor debug	the top of program memory contains moni-
		tor re-entry code for debugging .
[!]	Compare	Verifies any portions of EPROM program
		memory against PROMPT memory.
[!]	Move memory	Allows blocks of regi ster, data, or program
		memory to be moved.
~	Access	Specifies one of six access modes for PRO-
		MPT 48. For example EPROM, PROMPT
		RAM, or external program memory, and a
		variety of input/output options may be
		selected.
[ID	Breakpoint	Allows any or all of the eight breakpoints to
		be set and cleared.
[9	Clear	Clears portions of regi ster, data, or program
		memory.
@I	Dump	Dumps register, data, or program memory to
		PROMPT's serial channel : for example, a
		teletypewriter paper tape punch .
[]]	Enter	Enters (reads) register, data, or program
		memory from PROMPT'sserial channel.
IIJ	Fetch	Fetches programs from EPROM to PROMPT
		RAM .

Table 1_ PROMPT 48 Commands and Functions

Access

Easy access to the pins of the executing processor is provided via the 110 ports and bus connector. Only the EA external access, SS single step, and X1, X2 clock inputs are reserved for the PROMPT system.

Expansion

Program or data memory may be expanded beyond that provided on-chip or in the PROMPT system. 1/0 ports may be expanded, as with the 8243, or peripheral con- trollers may be memory-mapped. The 1/0 ports and Bus connector allows the execution socket processor to be directly interfaced to prototype systems, yet be con- trolled from the PROMPT panel.

Control

The commandlfunction group panel keyboard and dis- plays completely con trol PROMPT 48-a teletypewriter or CRT terminal is not needed. A hyphen prompting character appears whenever a command or function can be entered. Addresses and data are shown whenever examining registers and memory. Parameters for com- mands and functions are also shown .

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AFN~OO352A-03