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: 127/128页
文件大小: 928K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 96 of 122
SETUP
DATA0
ADDR
EP
CRC5
8 bytes data (CR)
CRC16
ACK
VALID='1'
EP0_PID="00"
CCPL='0'
CTRT='1'
CTSQ ="001"
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.
1. Set the transm it data to the
EP0 FIFO
2. Set the EP0 response PID
to BUF ("01")
Abandon request data
analysis result
W ait for the next CTRT
interrupt
VALID='1'
VALID='0'
IN
ADDR
EP
CRC5
NAK
CTRT='0'
VALID='0'
IN
ADDR
EP
CRC5
NAK
IN
ADDR
EP
CRC5
W rite data to
EP0_FIFO
(IVAL='1')
EP0_PID = "01"
DATA1
MAX packet size data
CRC16
ACK
H/W state
S/W procedure
USB bus
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
DATA0 : DATA0 PID
DATA1 : DATA1 PID
: Data to device from host
: Data to host from device
CR
: Control read transfer
CW
: Control write transfer
ND
: Control no data transfer
CRC16 : 16 bits CRC
ACK
: ACK PID
NAK
: NAK PID
STALL : STALL PID
SETUP
DATA0
ADDR
EP
CRC5
8 bytes data (CR)
CRC16
ACK
VALID='1'
EP0_PID="00"
CCPL='0'
CTRT='1'
CTSQ ="001"
Interrupt
IN
ADDR
EP
CRC5
NAK
W rite data to
EP0_FIFO
(IVAL='1')
EP0_PID = "01"
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.
1. Clear the EP0_FIFO
2. Set the transm it data to the
EP0 FIFO
3. Set the EP0 response PID
to BUF ("01")
Abandon request data
analysis result
W ait for the next CTRT
interrupt
VALID='1'
VALID='0'
IN
ADDR
EP
CRC5
NAK
IN
ADDR
EP
CRC5
DATA1
MAX packet size data
CRC16
ACK
Figure 3.12 Examples of Setup Continuous Operations (2)
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