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參數(shù)資料

型號(hào)：	MC68332GCFV20
廠商：	MOTOROLA INC
元件分類：	微控制器/微處理器
英文描述：	32-Bit Modular Microcontroller
中文描述：	32-BIT, 20.97 MHz, MICROCONTROLLER, PQFP144
封裝：	QFP-144
文件頁數(shù)：	72/88頁
文件大小：	446K
代理商：	MC68332GCFV20

MOTOROLA

MC68332

MC68332TS/D

6.5.2 QSPI Registers

The programmer's model for the QSPI submodule consists of the QSM global and pin control registers,

four QSPI control registers, one status register, and the 80-byte QSPI RAM.

The CPU can read and write to registers and RAM. The four control registers must be initialized before

the QSPI is enabled to ensure defined operation. SPCR1 should be written last because it contains

QSPI enable bit SPE. Asserting this bit starts the QSPI. The QSPI control registers are reset to a de-

fined state and can then be changed by the CPU. Reset values are shown below each register.

Refer to the following memory map of the QSPI.

Writing a different value into any control register except SPCR2 while the QSPI is enabled disrupts op-

eration. SPCR2 is buffered to prevent disruption of the current serial transfer. After completion of the

current serial transfer, the new SPCR2 values become effective.

Writing the same value into any control register except SPCR2 while the QSPI is enabled has no effect

on QSPI operation. Rewriting NEWQP in SPCR2 causes execution to restart at the designated location.

SPCR0 contains parameters for configuring the QSPI before it is enabled. The CPU can read and write

this register. The QSM has read-only access.

Pin Names

Mnemonics

MISO

Mode

Master

Slave

Master

Slave

Master

Slave

Master

Slave

Function

Master In Slave Out

Serial Data Input to QSPI

Serial Data Output from QSPI

Serial Data Input to QSPI

Clock Output from QSPI

Clock Input to QSPI

Select Peripherals

Selects Peripheral

Causes Mode Fault

Initiates Serial Transfer

Master Out Slave In

MOSI

Serial Clock

SCK

Peripheral Chip Selects

Peripheral Chip Select

Slave Select

PCS[3:1]

PCS0

Address

$YFFC18

$YFFC1A

$YFFC1C

$YFFC1E

$YFFC1F

$YFFD00

$YFFD20

$YFFD40

Name

SPCR0

SPCR1

SPCR2

SPCR3

SPSR

RAM

Usage

QSPI Control Register 0

QSPI Control Register 1

QSPI Control Register 2

QSPI Control Register 3

QSPI Status Register

QSPI Receive Data (16 Words)

QSPI Transmit Data (16 Words)

QSPI Command Control (8 Words)

SPCR0

— QSPI Control Register 0

$YFFC18

MSTR

WOMQ

BITS

CPOL

CPHA

SPBR

RESET:

相關(guān)PDF資料	PDF描述
MC68332GCFVV16	32-Bit Modular Microcontroller
MC68332GMFC16	32-Bit Modular Microcontroller
MC68332GMFC20	32-Bit Modular Microcontroller
MC68332GMFV16	32-Bit Modular Microcontroller
MC68332GMFVV20	32-Bit Modular Microcontroller

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
MC68332GCFVV16	制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:32-Bit Modular Microcontroller
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