NXP Semiconductors /LPC43xx /SPIFI /MCMD

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as MCMD

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0RESERVED0 (POLL)POLL 0 (DOUT)DOUT 0INTLEN 0 (ALL_SERIAL)FIELDFORM 0 (RESERVED)FRAMEFORM 0OPCODE

FIELDFORM=ALL_SERIAL, FRAMEFORM=RESERVED

Description

SPIFI memory command register

Fields

RESERVED

Reserved.

POLL

This bit should be written as 0.

DOUT

This bit should be written as 0.

INTLEN

This field controls how many intermediate bytes precede the data. (Each such byte may require 8 or 2 SCK cycles, depending on whether the intermediate field is in serial, 2-bit, or 4-bit format.) Intermediate bytes are output by the SPIFI, and include post-address control information, dummy and delay bytes. See the description of the Intermediate Data register for the contents of such bytes.

FIELDFORM

This field controls how the fields of the command are sent.

0 (ALL_SERIAL): All serial. All fields of the command are serial.

1 (QUADDUAL_DATA): Quad/dual data. Data field is quad/dual, other fields are serial.

2 (SERIAL_OPCODE): Serial opcode. Opcode field is serial. Other fields are quad/dual.

3 (ALL_QUADDUAL): All quad/dual. All fields of the command are in quad/dual format.

FRAMEFORM

This field controls the opcode and address fields.

0 (RESERVED): Reserved.

1 (RESERVED): Reserved.

2 (OPCODE_ONE_BYTE): Opcode one byte. Opcode, least-significant byte of address.

3 (OPCODE_TWO_BYTES): Opcode two bytes. Opcode, 2 least-significant bytes of address.

4 (OPCODE_THREE_BYTES): Opcode three bytes. Opcode, 3 least-significant bytes of address.

5 (OPCODE_FOUR_BYTES): Opcode four bytes. Opcode, 4 bytes of address.

6 (NO_OPCODE_THREE_BYTE): No opcode three bytes. No opcode, 3 least-significant bytes of address.

7 (NO_OPCODE_FOUR_BYTES): No opcode, 4 bytes of address.

OPCODE

The opcode of the command (not used for some FRAMEFORM values).

Links

()