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參數(shù)資料
| 型號： | M30240S9-XXXFP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| 中文描述： | 單片16位CMOS微機 |
| 文件頁數(shù)： | 59/142頁 |
| 文件大小： | 1637K |
| 代理商： | M30240S9-XXXFP |
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1-59
Mitsubishi microcomputers
M30240 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Preliminary Specifications REV. E
Specifications in this manual are tentative and subject to change
Universal Serial Bus
2.18.4.14 USB Endpoint 0 OUT WRT CNT Register
The USB Endpoint 0 OUT WRT CNT Register, shown in Figure 1.46, contains the number of bytes of the cur-
rent data set in the OUT FIFO. The USB FCU sets the value in the Write Count Register after having success-
fully received a packet of data from the host. The CPU reads the register to determine the number of bytes to
be read from the FIFO.
Figure 1.46: USB Endpoint 0 OUT WRT CNT
2.18.4.15 USB Endpoint x IN CSR (Control & Status Register)
The USB Endpoint x IN CSR (Control and Status Register), shown in Figure 1.47, contains control and status
information of the respective IN endpoint 1-4.
INxCSR0 (IN_PKT_RDY) and INxCSR5 (TX_FIFO_NOT_EMPTY):
These two bits are for IN FIFO status when in read operation (see “IN (Transmit) FIFO” operation for details).
The CPU writes a “1” to the INxCSR0 bit to inform the USB FCU that a packet of data is written to the FIFO.
The USB FCU updates the pointers up on this bit set. The USB FCU also updates the pointers upon a packet
of data successfully sent to the host. When the pointer updates are completed, the IN FIFO status is shown
on INxCSR0 and INxCSR5 bits for the CPU to read. The CPU must allow at least one wait state between writ-
ing and reading these bits for proper FIFO status.
INxCSR1 (UNDER_RUN):
This bit is used in ISO mode only to indicate to the CPU that a FIFO underrun has occurred. The USB FCU
sets this bit to a “1” at the beginning of an IN token if no data packet is in the FIFO. Setting this bit causes the
INST12 bit of the Interrupt Status Register 2 to set. The CPU writes a “0” to clear this bit.
INxCSR2 (SEND_STALL):
The CPU writes a “1” to this bit when the endpoint is stalled (transmitter halt). The USB FCU returns a STALL
handshake while this bit is set. The CPU writes a “0” to clear this bit.
INxCSR3 (ISO/TOGGLE_INIT):
When the endpoint is used for isochronous data transfer, the CPU sets this bit to a “1” for the entire duration
of the isochronous transfer. With the ISO bit set to a “1”, the device uses DATA0 as the pid for all packets sent
back to the host.
When the endpoint is required to initialize the data toggle, this set/reset of the TOGGLE_INIT bit method as-
sumes that there is no activity IN transaction to the respective endpoint on the bus at the time the initialization
process is ongoing. Set/reset of the TOGGLE_INIT bit is performed only when an endpoint experiences a con-
figuration event.
INxCSR4 (INTPT):
The CPU writes a “1” to this bit to initialize this endpoint as a status change endpoint for IN transactions. This
bit is set only when the corresponding endpoint is to be used to communicate rate feedback information (see
Chapter. IN (Transmit) FIFOs for details).
INxCSR5 (TX_FIFO_NOT_EMPTY):
The USBFCU sets this bit to a “1” when there is at least one data packet in the IN FIFO. This bit, in conjunction
with IN_PKT_RDY bit, provides the transmit IN FIFO status information (see “IN (Transmit) FIFO” for details).
INxCSR6 (FLUSH):
USB Endpoint 0 OUT Write Count Register
Symbol
EP0WC
Address
0315
16
When reset
00
16
Bit name
Bit symbol
b7
0 0 0
b6
b5
b4
b3
b2
b1
b0
W_CNT0 to
W_CNT4
Function
W
R
Receive byte count
Reserved
Must always be set to "0"
X
X
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| M30245M4-XXXGF | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30245F4-XXXGF | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30245M8-XXXGF | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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| M30245F8-XXXFP | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M30240SA | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240SA-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240SC | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240SC-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30245 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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