AFD4400 datasheet(71/101 Pages) NXP

71 / 101 page

Electrical characteristics

AFD4400 Digital Front End Processor Data Sheet, Rev. 0

Freescale Semiconductor

The figure below depicts Quad-SPI timing.

Figure 29. Quad-SPI input timing

3.6.11

SerDes

The following subsections define the AC-level specifications for the CPRI, SGMII and JESD204B data lines.

3.6.11.1

Signal terms definition

The SerDes utilizes differential signaling to transfer data across the serial link. This section defines the terms that are used in

the description and specification of differential signals.

Hold time requirement for incoming data

TQSDXKL

1.0

——ns

—

Note:

1. All data are based on a negative edge data launch from AFD4400 and a negative edge data capture as shown in the

timing diagrams.

2. Timings correspond to QSPI_SMPR = 0x0000_000x.

3. A negative value of hold is an indication of pad delay on the clock pad (delay between the edge capturing data inside

device and the edge appearing at the pin).

4. 15 pF load has been assumed on the pads.

Table 47. Quad-SPI module timing characteristics (continued)

Parameter

Symbol

Value

Unit

Note

Min

Typ

Max

QSPI_CK

QSPI_IO[3:0]

TQSKLDV

1. Last address out

2. Address captured at flash

3. Data out from Flash

4. This is SPI protocol defined Ideal Data Capture edge.The capture edge can be programmed as shown in 5,6,7,8.

5. Delayed data captured edge with QSPI_SMPR=0000_000x

6. Delayed data captured edge with QSPI_SMPR=0000_002x

7. Delayed data captured edge with QSPI_SMPR=0000_004x

8. Delayed data captured edge with QSPI_SMPR=0000_006x

QSPI_IO[3:0]

(For Output)

(For Input)

TQSDVKL

TQSDXKL

AFD4400 Datasheet(PDF) 71 Page - NXP Semiconductors

AFD4400 Datasheet(HTML) 71 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL