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參數資料

型號：	MC68332VFV16
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, 16.78 MHz, MICROCONTROLLER, PQFP144
封裝：	QFP-144
文件頁數：	80/88頁
文件大小：	446K
代理商：	MC68332VFV16

MOTOROLA

MC68332

MC68332TS/D

Writing a value of zero to SCBR disables the baud rate generator.

The following table lists the SCBR settings for standard and maximum baud rates using 16.78-MHz and

20.97-MHz system clocks.

SCCR1 contains SCI configuration parameters. The CPU can read and write this register at any time.

The SCI can modify RWU in some circumstances. In general, interrupts enabled by these control bits

are cleared by reading SCSR, then reading (receiver status bits) or writing (transmitter status bits)

SCDR.

Bit 15 — Not Implemented

LOOPS — Loop Mode

0 = Normal SCI operation, no looping, feedback path disabled

1 = Test SCI operation, looping, feedback path enabled

LOOPS controls a feedback path on the data serial shifter. When loop mode is enabled, SCI transmitter

output is fed back into the receive serial shifter. TXD is asserted (idle line). Both transmitter and receiver

must be enabled before entering loop mode.

WOMS — Wired-OR Mode for SCI Pins

0 = If configured as an output, TXD is a normal CMOS output.

1 = If configured as an output, TXD is an open-drain output.

WOMS determines whether the TXD pin is an open-drain output or a normal CMOS output. This bit is

used only when TXD is an output. If TXD is used as a general-purpose input pin, WOMS has no effect.

ILT — Idle-Line Detect Type

0 = Short idle-line detect (start count on first one)

1 = Long idle-line detect (start count on first one after stop bit(s))

PT — Parity Type

0 = Even parity

1 = Odd parity

When parity is enabled, PT determines whether parity is even or odd for both the receiver and the trans-

mitter.

Table 27 SCI Baud Rates

Nominal Baud Rate

Actual Rate with

16.78-MHz Clock

64.0

110.0

299.9

599.9

1199.7

2405.0

4810.0

9532.5

19418.1

37449.1

74898.3

524288.0

SCBR Value

Actual Rate with

20.97-MHz Clock

—

110.0

300.1

600.1

1200.3

2400.6

4783.6

9637.6

19275.3

38550.6

72817.8

655360.0

SCBR Value

64*

110

300

600

1200

2400

4800

9600

19200

38400

76800

$1FFF

$129E

$06D4

$036A

$0165

$00DA

$006D

$0037

$0016

$000E

$0007

$0001

—

$1745

$0888

$0444

$0222

$0111

$0089

$0044

$0022

$0011

$0009

$0001

Maximum Rate

SCCR1

— SCI Control Register 1

$YFFC0A

LOOPS WOMS

ILT

WAKE

TIE

TCIE

RIE

ILIE

RWU

SBK

RESET:

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相關代理商/技術參數	參數描述
MC68332VFV20	制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:32-Bit Modular Microcontroller
MC68334	制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Technical Supplement
MC68334GCEH16	功能描述:IC MCU 16MHZ 2K RAM 132-PQFP RoHS:是類別:集成電路 (IC) >> 嵌入式 - 微控制器，系列:M683xx 標準包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位速度:16MHz 連通性:SIO 外圍設備:- 輸入/輸出數:32 程序存儲器容量:8KB（8K x 8）程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數據轉換器:- 振蕩器型:外部工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件其它名稱:864285
MC68334GCEH16	制造商:Freescale Semiconductor 功能描述:Microcontroller
MC68334GCEH20	功能描述:IC MICROPROCESSOR 20MHZ 132-PQFP RoHS:是類別:集成電路 (IC) >> 嵌入式 - 微控制器，系列:M683xx 標準包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位速度:16MHz 連通性:SIO 外圍設備:- 輸入/輸出數:32 程序存儲器容量:8KB（8K x 8）程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數據轉換器:- 振蕩器型:外部工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件其它名稱:864285

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