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| 型號(hào)： | M30240M1 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單片16位CMOS微機(jī) |
| 文件頁(yè)數(shù)： | 142/142頁(yè) |
| 文件大?。?/td> | 1637K |
| 代理商： | M30240M1 |
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1-142
Mitsubishi microcomputers
M30240 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Preliminary Specifications REV. E
Specifications in this manual are tentative and subject to change
Programming Notes
Below is an example of how to set/reset the ISO bit of the IN CSR register (for initializing the respective
endpoint as an isochronous endpoint):
5.5.2 USB Consecutive Set Address
The USB Specification states that the host can send a SET_ADDRESS request for the following cas-
es:
1. During enumeration when the device is in default state. (The host assigns a non-zero address.)
2. When the device is in the address state. (The host can re-assign a new address.)
The device handles case #1 (when the device is in the default state) and case #2 (when the device is
in the address state) differently. The following is a segment of code to illustrate the program flow to
properly deal with these cases.
Note: wValue_lo = assigned address from the host in SET-ADDRESS request.
[R1L] = [EPiICS].B
OR.B #08H, R1L
AND.B #0FEH, R1L
[EPiICS].B = [R1L]
[R1L] = [EPiICS].B
OR.B #02, R1L
AND.B #0F6H, R1L
[EPiICS].B= [R1L]
;set ISO bit = 1, write “1” back to UNDER_RUN bit
;write “0” back to IN_PKT_RDY bit
;write “1” back to UNDER_RUN bit
;reset ISO bit = 0, write “0” back to IN_PKT_RDY bit
DEFAULT_STATE:
If [USBA].B ==0
[USBA.].B = wValue _ lo
;If the device is in default state, update address before STATUS
completion
R1L = [EP0CS].B
OR.B #48H, R1L
[EP0CS].B = R1L
wait for the completion of the
JMP ADDR_END
else
ADDR_STATE
R1L [EP0CS].B
OR.B #48H, R1L
[EP0CS].B = R1L
wait for the completion of the
;USB ENDPOINT 0 CSR
;Set serviced_out_pkt_rdy & data_end
;USB ENDPOINT 0 CSR
;Set serviced_out_pkt_rdy & data_end
[USBA].B= wValue_lo
;If the device is in address state, update address before STATUS
completion
ADDR_END
endif
end of the set_address routine
相關(guān)PDF資料 |
PDF描述 |
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| M30240M2 | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M3 | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M4 | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240E2-XXXFP | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240E5-XXXFP | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M30240M1-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M2 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M2-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M3 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M3-XXXFP | 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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