SPMCK16Z4MPV16 datasheet(215/500 Pages) FREESCALE

tên linh kiện	SPMCK16Z4MPV16

Giải thích chi tiết về linh kiện	M68HC16Z Series

PDF	500 Pages

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M68HC16 Z SERIES

QUEUED SERIAL MODULE

USER’S MANUAL

9-5

9.3 Queued Serial Peripheral Interface

The queued serial peripheral interface (QSPI) is used to communicate with external

devices through a synchronous serial bus. The QSPI is fully compatible with SPI sys-

tems found on other Freescale products, but has enhanced capabilities. The QSPI can

perform full duplex three-wire or half duplex two-wire transfers. A variety of transfer

rates, clocking, and interrupt-driven communication options is available.

Figure 9-2 displays a block diagram of the QSPI.

Figure 9-2 QSPI Block Diagram

QSPI BLOCK

CONTROL

REGISTERS

END QUEUE

POINTER

QUEUE

POINTER

STATUS

DELAY

COUNTER

COMPARATOR

PROGRAMMABLE

LOGIC ARRAY

80-BYTE

QSPI RAM

CHIP SELECT

COMMAND

DONE

BAUD RATE

GENERATOR

PCS[2:1]

PCS0/SS

MISO

MOSI

SCK

8/16-BIT SHIFT REGISTER

Rx/Tx DATA REGISTER

MSB

LSB

QUEUE CONTROL

BLOCK

CONTROL

LOGIC

Freescale Semiconductor, Inc.

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