參數(shù)資料
型號: MC68334GCEH16
廠商: Freescale Semiconductor
文件頁數(shù): 47/76頁
文件大小: 0K
描述: IC MCU 16MHZ 2K RAM 132-PQFP
標準包裝: 36
系列: M683xx
核心處理器: CPU32
芯體尺寸: 32-位
速度: 16MHz
連通性: EBI/EMI,UART/USART
輸入/輸出數(shù): 47
程序存儲器類型: ROMless
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8/10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 132-BQFP 緩沖式
包裝: 托盤
MC68334
MC68334TS/D REV. 1
51
5 Time Processor Unit
The time processor unit (TPU) is an intelligent, semi-autonomous microcontroller designed for timing
control. The TPU operates simultaneously with the CPU; it processes ROM instructions, schedules
tasks, performs input and output, and accesses shared data without CPU intervention. Consequently,
setup and service time for each timer event are minimized. The figure below is a simplified block dia-
gram of the TPU.
Figure 11 TPU Block Diagram
5.1 Overview
The TPU can be viewed as a special-purpose microcomputer that performs a programmable series of
two operations, match and capture. Each occurrence of either operation is called an event. A pro-
grammed series of events is called a function. TPU functions replace software functions that would re-
quire host CPU interrupt service. Two sets of mask-programmed functions are currently available. Refer
to 5.6 Time Functions for more information.
5.2 Programmer's Model
The TPU control register address map occupies 512 bytes. The “Access” column in the TPU address
map below indicates which registers are accessible only at the supervisor privilege level and which can
be assigned to either the supervisor or user privilege level, according to the value of the SUPV bit in the
TPUMCR.
T2CLK
PINS
SERVICE REQUESTS
DATA
TCR1
TCR2
MICROENGINE
CONTROL
STORE
EXECUTION
UNIT
I M B
PARAMETER
RAM
CHANNEL
CONTROL
DEVELOPMENT
SUPPORT AND TEST
SYSTEM
CONFIGURATION
SCHEDULER
CONTROL AND DATA
CONTROL
TIMER
CHANNELS
CHANNEL 0
CHANNEL 1
CHANNEL 15
CHANNEL
DATA
TPU BLOCK
HOST
INTERFACE
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相關代理商/技術參數(shù)
參數(shù)描述
MC68334GCEH16 制造商:Freescale Semiconductor 功能描述:Microcontroller
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