- 您现在的位置：买卖IC网 > PDF目录98145 > ST72652C4T1/XXX (STMICROELECTRONICS) 8-BIT, MROM, MICROCONTROLLER, PQFP48 PDF资料下载
参数资料
| 型号： | ST72652C4T1/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, TQFP-48 |
| 文件页数： | 131/161页 |
| 文件大小： | 2656K |
| 代理商： | ST72652C4T1/XXX |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页当前第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页
ST72651AR6
71/161
Doc ID 7215 Rev 4
USB INTERFACE (Cont’d)
Bits 1:0 = STAT_RX [1:0] Status bits, for reception
transfers.
These bits contain the information about the end-
point status, as listed below:
Table 21. Reception Status Encoding
These bits are written by software. Hardware sets
the STAT_RX and STAT_TX bits to NAK when a
correct transfer has occurred (CTR=1) addressed
to this endpoint, so the software has the time to ex-
amine the received data before acknowledging a
new transaction.
Notes:
If a SETUP is received while the status is other
than DISABLED, it is acknowledged and the two
directional status bits are set to NAK by hardware.
When a STALL is answered by the USB device,
the two directional status bits are set to STALL by
hardware.
ENDPOINT
1
RECEPTION
REGISTER
(EP1RXR)
Read/Write
Reset value: 0000 0000 (00h)
This register is used for controlling Endpoint 1 re-
ception. Bits 2:0 are also reset by a USB reset, ei-
ther received from the USB or forced through the
FRES bit in the CTLR register.
Bits 7:4 Reserved, forced by hardware to 0.
Bit 3 = CTR_RX Correct Reception Transfer.
This bit is set by hardware when a correct transfer
operation is performed in reception. This bit must
be cleared after the corresponding interrupt has
been serviced.
Bit 2 = DTOG_RX Data Toggle, for reception
transfers.
It contains the expected value of the toggle bit
(0=DATA0, 1=DATA1) for the next data packet.
The receiver toggles DTOG_RX only if it receives
a correct data packet and the packet’s data PID
matches the receiver sequence bit.
Bits 1:0 = STAT_RX [1:0] Status bits, for reception
transfers.
These bits contain the information about the end-
point status, as listed below:
Table 22. Reception Status Encoding:
These bits are written by software, but hardware
sets the STAT_RX bits to NAK when a correct
transfer has occurred (CTR=1) addressed to this
endpoint, so the software has the time to examine
the received data before acknowledging a new
transaction.
STAT_RX1 STAT_RX0
Meaning
00
DISABLED: no function can be
executed on this endpoint and
messages related to this end-
point are ignored.
01
STALL: the endpoint is stalled
and all reception requests re-
sult in a STALL handshake.
10
NAK: the endpoint is NAKed
and all reception requests re-
sult in a NAK handshake.
11
VALID: this endpoint is ena-
bled (if an address match oc-
curs, the USB interface
handles the transaction).
70
00
CTR_R
X
DTOG
_RX
STAT_
RX1
STAT_
RX0
STAT_RX1 STAT_RX0
Meaning
00
DISABLED: reception trans-
fers cannot be executed.
01
STALL: the endpoint is stalled
and all reception requests re-
sult in a STALL handshake.
10
NAK: the endpoint is naked
and all reception requests re-
sult in a NAK handshake.
11
VALID: this endpoint is ena-
bled for reception.
1
相关PDF资料 |
PDF描述 |
|---|---|
| ST7267R8T1L/XXX | 16-BIT, MROM, 30 MHz, RISC MICROCONTROLLER, PQFP64 |
| ST7267C8T1/XXX | 16-BIT, MROM, 30 MHz, RISC MICROCONTROLLER, PQFP48 |
| ST72774S9T1/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44 |
| ST72E734J6D0 | 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP42 |
| ST72T774S9T1 | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7265X-EVAL/MS | 制造商:STMicroelectronics 功能描述:ST6 EVAL BD - Bulk |
| ST7265X-EVAL/PFD | 制造商:STMicroelectronics 功能描述:USB FLASH EVAL - Bulk |
| ST7266 | 制造商:6940 功能描述:ST7266 |
| ST7267C8T1L | 制造商:STMicroelectronics 功能描述: |
| ST72681/R12 | 制造商:STMicroelectronics 功能描述:CONTROLLER FOR HIGH-PERFORMANCE BUS-POWERED USB 2.0 FLASH DR - Trays |
发布紧急采购，3分钟左右您将得到回复。