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參數(shù)資料
| 型號(hào)： | UPD754304GS |
| 廠商： | NEC Corp. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機(jī)的小型通用紅外遙控器 |
| 文件頁(yè)數(shù)： | 29/74頁(yè) |
| 文件大?。?/td> | 316K |
| 代理商： | UPD754304GS |
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μ
PD754302, 754304, 754302(A), 754304(A)
29
6.7 Bit Sequential Buffer ....... 16 Bits
The bit sequential buffer (BSB) is a special data memory for bit manipulation and the bit manipulation can be
easily performed by changing the address specification and bit specification in sequence, therefore it is useful
when processing a long data bit-wise.
The data memory is composed of 16 bits and the pmem.@L addressing of a bit manipulation instruction is
possible. The bit can be specified indirectly by the L register. In this case, processing can be done by moving the
specified bit in sequence by incrementing and decrementing the L register in the program loop.
Figure 6-7. Bit Sequential Buffer Format
Address
Bit
Symbol
L register
L = FH
L = CH L = BH
L = 8H L = 7H
L = 4H
L = 3H
L = 0H
DECS L
INCS L
BSB3
BSB2
BSB1
BSB0
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
FC3H
FC2H
FC1H
FC0H
Remarks 1.
In the pmem.@L addressing, the specified bit moves corresponding to the L register.
In the pmem.@L addressing, the BSB can be manipulated regardless of MBE/MSB specification.
2.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD754302A | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD754304 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD754302GSA | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD75P048CW | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD750004CU(A)-XXX | 4-Bit Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD7554AG-597-E2 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD7554AG-597-E2-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD7554AG-603-E2 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD7554AG-603-E2-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD7554AG-611-E2 | 制造商:Renesas Electronics Corporation 功能描述: |
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