USB84604 datasheet(49/61 Pages) MICROCHIP

部件名	USB84604

功能描述	USB 2.0 HSIC Hi-Speed 4-Port Controller Hub

PDF	61 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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 2014-2016 Microchip Technology Inc.

DS60001295C-page 49

USB84604

9.6.7

SPI TIMING

The following specifies the SPI timing requirements for the device.

FIGURE 9-5:

SPI TIMING

Note:

The SPI can be configured for 30 MHz or 60 MHz operation via the SPI_SPD_SEL configuration strap. 30

MHz operation timing values are shown in Table 9-11. 60 MHz operation timing values are shown in

Table 9-12.

TABLE 9-11:

SPI TIMING VALUES (30 MHZ OPERATION)

Symbol

Description

Min

Typ

Max

Units

tfc

Clock frequency

MHz

tceh

Chip enable (SPI_CE_EN) high time

100

tclq

Clock to input data

tdh

Input data hold time

tos

Output setup time

toh

Output hold time

tov

Clock to output valid

tcel

Chip enable (SPI_CE_EN) low to first clock

tceh

Last clock to chip enable (SPI_CE_EN) high

SPI_CLK

SPI_DI

SPI_DO

SPI_CE_N

tcel

tfc

tclq

tceh

tdh

toh

tos

tov

toh

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