MX93032 Просмотр технического описания (PDF) - Macronix International

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MX93032

APPLICATION NOTE [M1 VERSION]

Macronix International 

MX93032

6.0 FUNCTIONAL DESCRIPTIONS

HOST INTERFACE (MCU MODE)

The command and response of the MX93032-M1 are made up by a 16-bit code. The protocol that one command sent

and one response received must strictly be obeyed by HOST ; otherwise, dead lock will occur. Meanwhile, both

parallel interface and serial interface are provided by the MX93032-M1.

8-bit parallel :

A 16-bit code can be accessed by HOST two times via setting PHILO pin. For writing operation, the HOST write the

low byte of the command into the register of DSP, when PHILO is pulled to low, DSP does nothing but latches data.

Following, PHILO is set to high and high byte of command is written into register, then DSP will perform the command

issued by HOST and send out the response. DSP will pull PACK\ to be low to indicate that response is ready. HOST

must read the low byte and then high byte sequentially. PACK\ will reset to high when the high byte is read by HOST.

All of the description given above will be illustrated by the following timing chart.

PHILO

PHDB 0 - 7

PHWR\

PACKB\

PHRD\

P/N:PM0689

REV. 1.0.3, DEC. 13, 1999

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