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參數(shù)資料
| 型號(hào)： | MC68CK338 |
| 廠商： | Motorola, Inc. |
| 元件分類(lèi)： | 32位微控制器 |
| 英文描述： | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| 中文描述： | 高度集成，低功耗，32位微控制器 |
| 文件頁(yè)數(shù)： | 57/133頁(yè) |
| 文件大?。?/td> | 798K |
| 代理商： | MC68CK338 |
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MC68CK338
MC68CK338TS/D
MOTOROLA
57
5 Queued Serial Module
The QSM contains two serial interfaces, the queued serial peripheral interface (QSPI) and the serial
communication interface (SCI).
Figure 14
shows the QSM block diagram.
Figure 14 QSM Block Diagram
5.1 Overview
The QSPI provides easy peripheral expansion or interprocessor communication through a full-duplex,
synchronous, three-line bus: data in, data out, and a serial clock. Four programmable peripheral chip-
select pins provide addressability for up to 16 peripheral devices. A self-contained RAM queue allows
up to 16 serial transfers of 8 to 16 bits each, or transmission of a 256-bit data stream without CPU in-
tervention. A special wraparound mode supports continuous sampling of a serial peripheral, with auto-
matic QSPI RAM updating, which makes the interface to A/D converters more efficient.
The SCI provides a standard non-return to zero (NRZ) mark/space format. It operates in either full- or
half-duplex mode. There are separate transmitter and receiver enable bits and dual data buffers. A
modulus-type baud rate generator provides rates from 55 to 451 kbaud with a 14.44-MHz system clock.
Word length of either eight or nine bits is software selectable. Optional parity generation and detection
provide either even or odd parity check capability. Advanced error detection circuitry catches glitches
of up to 1/16 of a bit time in duration. Wakeup functions allow the CPU to run uninterrupted until mean-
ingful data is available.
Table 35
shows the address map of the QSM.
QSPI
INTERFACE
LOGIC
SCI
MISO/PQS0
MOSI/PQS1
SCK/PQS2
PCS0/SS/PQS3
PCS1/PQS4
PCS2/PQS5
PCS3/PQS6
TXD/PQS7
RXD
P
QSM BLOCK
I
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| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
| MC68EN360CFE25 | QUad Integrated Communications Controller Users Manual |
| MC68EN360FE25 | AC 4C 4#12 PIN PLUG 023 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68CK338CPV14 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC68CK338CPV14B1 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:32-Bit Modular Microcontroller |
| MC68CM16Z1 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CM16Z1CFC16 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CM16Z1CPV16 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
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