DLPA2000 datasheet(33/63 Pages) TI

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Table 7-4. SPI Flash Instruction OpCode and Access Profile Compatibility Requirements

SPI FLASH COMMAND

BYTE 1

(OPCODE)

BYTE 2

BYTE 3

BYTE 4

BYTE 5

BYTE 6

Fast READ (1 output)

0x0B

ADDRS(0)

ADDRS(1)

ADDRS(2)

dummy

DATA(0)(1)

Read status

0x05

N/A

STATUS(0)

Write status

0x01

STATUS(0)

See (2)

Write enable

0x06

Page program

0x02

ADDRS(0)

ADDRS(1)

ADDRS(2)

DATA(0)(1)

Sector erase (4 KB)

0x20

ADDRS(0)

ADDRS(1)

ADDRS(2)

Chip erase

0xC7

(1)

Shows the first data byte only. Data continues.

(2)

Access to a second (expansion) write status byte not supported by the DLPC34xx controller.

Table 7-5 below and the Flash Interface Timing Requirements section list the specific timing compatibility

requirements for a DLPC34xx compatible flash device.

Table 7-5. SPI Flash Key Timing Parameter Compatibility Requirements

SPI FLASH TIMING PARAMETER(1) (2)

SYMBOL

ALTERNATE SYMBOL

MIN

MAX

UNIT

Access frequency (all commands)

≤ 1.4

≥ 30.1

MHz

Chip select high time (also called chip select

deselect time)

tSHSL

tCSH

≤ 200

Output hold time

tCLQX

tHO

≥ 0

Clock low to output valid time

tCLQV

≤ 11

Data in set-up time

tDVCH

tDSU

≤ 5

Data in hold time

tCHDX

tDH

≤ 5

(1)

The timing values apply to the specification of the peripheral flash device, not the DLPC34xx controller. For example, the flash device

minimum access frequency (FR) must be 1.4 MHz or less and the maximum access frequency must be 30.1 MHz or greater.

(2)

The DLPC34xx does not drive the HOLD or WP (active low write protect) pins on the flash device, and thus these pins must be tied to

a logic high on the PCB through an external pullup.

In order for the DLPC34xx controller to support 1.8-V, 2.5-V, or 3.3-V serial flash devices, the VCC_FLSH pin

must be supplied with the corresponding voltage. The DLPC34xx Validated SPI Flash Device Options table

contains a list of validated 1.8-V, 2.5-V, or 3.3-V compatible SPI serial flash devices supported by the DLPC34xx

controller.

Table 7-6. DLPC34xx Validated SPI Flash Device Options(1) (2) (3)

DENSITY (Mb)

VENDOR

PART NUMBER

PACKAGE SIZE

1.8-V COMPATIBLE DEVICES

4 Mb

Winbond

W25Q40BWUXIG

2 × 3 mm USON

4 Mb

Macronix

MX25U4033EBAI-12G

1.43 × 1.94 mm WLCSP

8 Mb

Macronix

MX25U8033EBAI-12G

1.68 × 1.99 mm WLCSP

2.5- OR 3.3-V COMPATIBLE DEVICES

16 Mb

Winbond

W25Q16CLZPIG

5 × 6 mm WSON

(1)

The flash supply voltage must equal VCC_FLSH supply voltage on the DLPC34xx controller. Make sure to order the device that

supports the correct supply voltage as multiple voltage options are often available.

(2)

Numonyx (Micron) serial flash devices typically do not support the 4-KB sector size compatibility requirement for the DLPC34xx

controller.

(3)

The flash devices in this table have been formally validated by TI. Other flash options may be compatible with the DLPC34xx controller,

but they have not been formally validated by TI.

www.ti.com

DLPC3420

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