LPC178X(2011) Ver la hoja de datos (PDF) - NXP Semiconductors.

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Fabricante

LPC178X
(Rev.:2011)

32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 96 kB SRAM; USB Device/Host/OTG; Ethernet; LCD; EMC

NXP Semiconductors. 

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

11.8 I2S-bus interface

Table 24. Dynamic characteristics: I2S-bus interface pins

Tamb = 40 C to 85 C, VDD(REG)(3V3) = 3.0 V to 3.6 V. Values guaranteed by design.

Symbol Parameter

Conditions

Min Max

common to input and output

tr

rise time

tf

fall time

tWH

pulse width HIGH

[1] -

6.7

[1] -

8.0

on pins I2S_TX_SCK and [1] 25

-

I2S_RX_SCK

tWL

pulse width LOW

on pins I2S_TX_SCK and [1] -

25

I2S_RX_SCK

Unit

ns

ns

-

ns

output

tv(Q)

data output valid time

on pin I2S_TX_SDA;

[1] -

6

ns

input

tsu(D)

data input set-up time

on pin I2S_RX_SDA

[1] 5

-

ns

th(D)

data input hold time

on pin I2S_RX_SDA

[1] 2

-

ns

[1] CCLK = 100 MHz; peripheral clock to the I2S-bus interface PCLK = CCLK / 4. I2S clock cycle time Tcy(clk) =

1600 ns, corresponds to the SCK signal in the I2S-bus specification.

I2S_TX_SCK

I2S_TX_SDA

Tcy(clk)

tWH

tWL

tv(Q)

I2S_TX_WS

tv(Q)

Fig 25. I2S-bus timing (transmit)

tf

tr

002aag202

LPC178X_7X

Objective data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 2 — 27 May 2011

© NXP B.V. 2011. All rights reserved.

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