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: 123/128页
文件大小: 928K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 92 of 122
SETUP
DATA0
ADDR
EP
C RC5
8 bytes data (CR)
CRC16
ACK
VALID='1'
EP0_PID="00"
CCPL='0'
CTRT='1'
CTSQ ="001"
Interrupt
VALID confirm
C T R T interrupt confirm
CT RT interrupt clear
VALID clear
Request data analysis
Execute the following
processing on the basis of the
request data analysis result.
1. Set the transmit data to the
EP0 FIFO
2. Set the EP0 response PID
to BUF ("01")
Abandon request data
analysis result
W ait for the next CT RT
interrupt
VALID='1'
VALID='0'
IN
ADDR
EP
C RC5
NAK
CTRT='0'
VALID='0'
IN
ADDR
EP
C RC5
NAK
IN
ADDR
EP
C RC5
W rite data to
EP0_FIFO
(IVAL='1')
EP0_PID = "01"
DATA1
MAX packet size data
CRC16
ACK
IN
ADDR
EP
C RC5
DATA0
Short packet data
CRC16
ACK
OUT
ADDR
EP
C RC5
DATA1
CRC16
(0 byte length data)
NAK
OUT
ADDR
EP
C RC5
DATA1
CRC16
(0 byte length data)
ACK
CTRT='1'
CTSQ ="010"
Interrupt
Transmit
no-problem confirm
C T R T interrupt confirm
CT RT interrupt clear
Set the CCPL
Set EP0 response
PID to ST ALL("1x")
problem
N o-problem
CTRT='0'
CCPL = '1'
H/W state
S/W procedure
USB bus
SET U P : SET UP PID
OUT
: OUT PID
IN
: IN PID
AD DR
: USB address (H '00~H '7F)
EP
: Endpoint (H'0~H '3)
CR C5
: 5 bits C RC
DAT A0 : DAT A0 PID
DAT A1 : DAT A1 PID
: D ata to device from host
: D ata to host from device
CR
: C ontrol read transfer
CW
: C ontrol write transfer
ND
: C ontrol no data transfer
CRC16 : 16 bits CRC
ACK
: ACK PID
NAK
: N AK PID
ST ALL
: ST ALL PID
CTRT='1'
CTSQ ="000"
Interrupt
C T R T interrupt confirm
CT RT interrupt clear
CTRT='0'
Set the continuous transm it m ode.
Figure 3.8 Examples of Control Read Transition Operations
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