IMX6SDLCEC datasheet(132/169 Pages) NXP

132 / 169 page

i.MX 6Solo/6DualLite Applications Processors for Consumer Products, Rev. 9, 11/2018

132

NXP Semiconductors

Electrical Characteristics

UART IrDA Mode Receiver

Figure 98 depicts the UART IrDA mode receive timing, with 8 data bit/1 stop bit format. Table 90 lists

the receive timing characteristics.

Figure 98. UART IrDA Mode Receive Timing Diagram

4.11.21 USB HSIC Timings

This section describes the electrical information of the USB HSIC port.

NOTE

HSIC is DDR signal, following timing spec is for both rising and falling

edge.

4.11.21.1 Transmit Timing

Figure 99. USB HSIC Transmit Waveform

Table 90. IrDA Mode Receive Timing Parameters

Parameter

Symbol

Min

Max

Unit

UA5 Receive Bit Time1 in IrDA mode

The UART receiver can tolerate 1/(16

x Fbaud_rate) tolerance in each bit. But accumulation tolerance in one frame must not

exceed 3/(16

x Fbaud_rate).

tRIRbit

1/Fbaud_rate

2 - 1/(16 x F

baud_rate)

2 F

baud_rate: Baud rate frequency. The maximum baud rate the UART can support is (ipg_perclk frequency)/16.

1/Fbaud_rate + 1/(16 x Fbaud_rate)—

UA6 Receive IR Pulse Duration

tRIRpulse

1.41

μs

(5/16) x (1/Fbaud_rate)—

Table 91. USB HSIC Transmit Parameters

Name

Parameter

Min

Max

Unit

Comment

Tstrobe

strobe period

4.166

4.167

—

Todelay

data output delay time

550

1350

Measured at 50% point

Tslew

strobe/data rising/falling time

0.7

V/ns

Averaged from 30% – 70% points

Bit 1

Bit 2

Bit 0

Bit 4

Bit 5

Bit 6

Bit 7

UARTx_RX_DATA

(input)

Bit 3

Start

Bit

STOP

BIT

Possible

Parity

Bit

UA5

UA6

USB_H_STROBE

USB_H_DATA

Todelay

Tstrobe

Todelay

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