参数资料
型号: M66291GP
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 122/128页
文件大小: 928K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 91 of 122
SETUP
DATA0
ADDR
EP
CRC5
8 bytes data (CW)
CRC16
ACK
VALID='1'
EP0_PID="00"
CCPL='0'
CTRT='1'
CTSQ ="011"
Interrupt
VALID confirm
CTRT interrupt confirm
CTRT interrupt clear
VALID clear
Request data analysis
Execute the following
processing on the basis of the
request data analysis result.
Set the EP0 response PID to
BUF (“01”).
Abandon request data
analysis result
Wait for the next CTRT
interrupt
VALID='1'
VALID='0'
OUT
ADDR
EP
CRC5
NAK
CTRT='0'
VALID='0'
OUT
ADDR
EP
CRC5
NAK
OUT
ADDR
EP
CRC5
EP0_PID = "01"
DATA1
MAX packet size data
CRC16
ACK
OUT
ADDR
EP
CRC5
DATA0
Short packet data
CRC16
ACK
IN
ADDR
EP
CRC5
NAK
IN
ADDR
EP
CRC5
DATA1
CRC16
(0
byte length data)
ACK
CTRT='1'
CTSQ ="100"
Interrupt
Transmit
no-problem confirm
CTRT interrupt confirm
CTRT interrupt clear
Set the CCPL
Set EP0 response
PID to STALL (“1x”)
problem
No-problem
CTRT='0'
CCPL = '1'
H/W state
S/W procedure
USB bus
DATA1
MAX packet size data
CRC16
DATA1
MAX packet size data
CRC16
IN
ADDR
EP
CRC5
NAK
IN
ADDR
EP
CRC5
NAK
Interrupt
INTR= '1'
EPB_RDY[0]='1'
EPB_RDY[0] interrupt confirm
Read receive data from EP0_FIFO
SETUP : SETUP PID
OUT
: OUT PID
IN
: IN PID
ADDR : USB address (H'00~H'7F)
EP
: Endpoint (H'0~H'3)
CRC5 : 5 bits CRC
: Data to device from host
: Data to host from device
ACK
: ACK PID
NAK
: NAK PID
STALL : STALL PID
EPB_RDY[0]='0'
CTRT='1'
CTSQ ="000"
Interrupt
CTRT interrupt confirm
CTRT interrupt clear
CTRT='0'
DATA0 : DATA0 PID
DATA1 : DATA1 PID
CR
: Control read transfer
CW
: Control write transfer
ND
: Control no data transfer
CRC16 : 16 bits CRC
Set the continuous transmit mode.
Figure 3.7 Examples of Control Write Transition Operations
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