IC697MDL251
ENDPCTL（端點(diǎn)控制）模塊
設(shè)計(jì)中用到兩個(gè)端點(diǎn)，端點(diǎn)0和端點(diǎn)1。端點(diǎn)0是半雙工傳輸，主要是在設(shè)備的枚舉過(guò)程中用于控制傳輸， 端點(diǎn)1是在枚舉完成后的中斷傳輸中用設(shè)備和主機(jī)之間的數(shù)據(jù)傳輸。由于中斷傳輸主要是通過(guò)端點(diǎn)1輸入， 但也有少許輸出（如鍵盤的LED燈輸出），我們?yōu)榱斯?jié)省資源，所以由端點(diǎn)0完成少許的輸出。
2.3.5 BUFCTL（緩沖器控制）模塊
緩沖器控制模塊是USB和SRAM及ROM的連接橋梁，在主機(jī)要求輸入數(shù)據(jù)的IN token狀態(tài)時(shí)，控制器 從SRAM或ROM中取出數(shù)據(jù)送給主機(jī)或主機(jī)輸出數(shù)據(jù)的OUT token狀態(tài)時(shí)，控制器把接收到的數(shù)據(jù)存放在 SRAM中，它主要根據(jù)串行接口引擎SIE的接收或發(fā)送準(zhǔn)備信號(hào)來(lái)控制讀寫(xiě)信號(hào)，保證數(shù)據(jù)能正確傳輸。 USB與MCU共享通用寄存器區(qū)，usbREQUST為來(lái)自USB的請(qǐng)求訪問(wèn)存儲(chǔ)器信號(hào)，usbADDR為USB訪問(wèn)存 儲(chǔ)器的地址信號(hào)，usbADDR［11:8］不等于零時(shí)屬于USB訪問(wèn)程序存儲(chǔ)器的地址空間。當(dāng)USB與MCU同時(shí)訪 問(wèn)數(shù)據(jù)存儲(chǔ)器（SRAM）時(shí)，MCU具有優(yōu)先權(quán)。
IC697MDL251
IC697MDL251聯(lián)系人：李先生
手機(jī)：18030229050
電話：0592-5709821
傳真：0592-5709828
QQ 1878187406
郵箱 1878187406@qq.com
IC697MDL251SQUARE D POWERLOGIC CIRCUIT MONITOR 3020/CM-2350
NEW MILLTRONICS SAM-20 SATELLITE ALARM MODULE
NEW EATON POSITIVE DISPLACEMENT PISTON PUMP PVM018ER
EUROTHERM DC DRIVE 20 HP AC TO DC INVERTER 955L8R22
TEKTRONIX TWO CHANNEL DIGITIZING OSCILLOSCOPE TDS-410A
GE THPC 3412 HIGH PRESSURE CONTACT SWITCH 1200 AMP
FISHER PROVOX CL7661X1-BA5 MEM & CL7661X1-A10 MPU P5.2
SQUARE D PAF362000Z CIRCUIT BREAKER 1600 AMP TRIP
NEW A.O. SMITH ELECTRIC MOTOR 40 HP S286TS FRAME
NEW VICKERS HYDRAULIC PISTON PUMP PVH570ICRF1S10CM7
MAGNATEX 1.5X1-8 MAGNETIC DRIVE PUMP MTA SERIES AA8
NEW API KETEMA SHELL & TUBE HEAT EXCHANGER HT-4-A-CI
NEW DELROYD GEAR SPEED REDUCER 620:1 RATIO DE70-S2
NEW GE SSD 5 HP DC ELECTRIC MOTOR 180 V 1750/2050 RPM
FUJI RING BLOWER COMPRESSOR VFC704A-7W 6.7 HP 267 CFM
NEW SEW EURODRIVE POWER TRANSMISSION 35400 IN LB 13.5:1
KONTRO 316 SS 2 HP SEAL/LESS PUMP 15 GPM MODEL A-RANGE
DIETRICH REIMELT ROTARY AIRLOCK VALVE 8 1/4" W X 7"
HONEYWELL 620-0072 LOOP PROCESSOR MODULE
SULZER 3" x 3" STAINLESS STEEL PUMP PMZU-2510-H88
FISHER PROVOX I/O DRIVER 41B5810 CL7675X1-A10 & BA5
FISHER PROVOX CL6601X1-HA5 I/O DRIVER BOARD 40B6016X32
NEW KINNEY HIGH VACUUM PUMP 115 VAC SINGLE PHASE KC8C
NEW CUTLER HAMMER KD2200 200 AMP 2 POLE CIRCUIT BREAKER
SCHOTT SUNTRACK SOLAR MONITOR DATA ACQUSITION SYSTEM
MODICON 140 NOE 771 00 ENET 140NOE77100 ENET 8 MEG
BALDOR 1 HP INVERTER ID15H401-E W/ GSD PROFIBUS BOARD
SQUARE D 800 AMP I-LINE CIRCUIT BREAKER MH36800
NEW TYCO 12" PNEUMATIC RACK PINION ACTUATED SEAT VALVE
GOULDS 20 HP STAINLESS CENTRIFUGAL PUMP 2X2-1/2-6 MOTOR
NEW CLEAVER BROOKS 3/4" X 3/4" HI PRESSURE OIL PUMP
SQUARE D SIZE 4 COMBINATION MOTOR STARTER 250 A SFO1
PRO-TECH FP18-PBZAZZ 20-9652 OPERATOR INTERFACE 18"
WESTINGHOUSE PB32500F CIRCUIT BREAKER 1000 A TRIP
HONEYWELL COMPLETE PLC SYSTEM W/ POWER SUPPLY 621-9933C
NEW WARD LEONARD MOTOR STARTER 5DP3-21100 RATED 500VDC
DRESSER 2" CONSOLIDATED PRESSURE RELIEF VALVE 1905JC-2
RELIANCE ELECTRO CRAFT DDM-019 SERVO DRIVE 9101-1523
INDRAMAT SERVO DRIVE CONTROLLER TVM1.2-30-300-W0
NEW GRISWOLD 3 HP SELF-PRIMING PUMP 3-1/4 X 2-1/8 182JM
NEW HARDY INSTRUMENTS WAVERSAVER C2 HI2151/20WC
NEW VICKERS HYDRAULIC PISTON PUMP PVH570ICRF1S10CM7
SQUARE D CIRCUIT BREAKER I-LINE 600 AMP MH36600
NEW BALDOR MOTOR DRIVER BOARD BTS10-7.5/15-24-RL-724
SIEMENS FUSED SWITCH 800 AMP VF357BL
BALDOR 10 HP MOTOR 3450 RPM W/ PACO PUMP 2"X 2-1/4"
NEW HOWDEN BUFFALO GE 1 HP BLOWER / MOTOR MODEL BL
ENDRESS HAUSER PROMASS FLOW METER 63MT25 WOWO2026B1A
YALE 1 TON CHAIN HOIST KEL1-10H15S1 230 / 460 VOLT 1HP
SQUARE D PAF362000Z CIRCUIT BREAKER 800 AMP TRIP
ABB 10 HP AC VFD DRIVE ACS401600932 480 VOLT NEMA 4x
NEW GE FANUC SERVO AMPLIFIER A06B-6058-H013
MAGNATEX 1.5X1-8 MAGNETIC DRIVE PUMP MTA SERIES AA8
REBUILT GE ELECTRIC MOTOR 125 HP 405TSC FRAME 1760 RPM
NEW THERMO ELECTRON COOL POCKET COLUMN CHILLER 92017
NEW CUTLER HAMMER 400 AMP TRIP UNIT HMA3400T 371D371G29
EBERHARD BAUER G SERIES HELICAL GEARMOTOR 6 HP 24 RPM
INGERSOLL RAND 10 HP CENTRIFUGAL PUMP 2.5" X 1.5" -8T
