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參數(shù)資料
| 型號： | M37753M8C |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Single Chip 16 Bits CMOS Microcomputer(16位單片機) |
| 中文描述： | 單片微機16位的CMOS（16位單片機） |
| 文件頁數(shù)： | 11/109頁 |
| 文件大?。?/td> | 865K |
| 代理商： | M37753M8C |
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MITSUBISHI MICROCOMPUTERS
M37753M8C-XXXFP, M37753M8C-XXXHP
M37753S4CFP, M37753S4CHP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Figure 5 shows basic waveforms of the bus interface unit. The E sig-
nal becomes “L” when the bus interface unit reads an instruction
code or data from memory or when it writes data to memory.
Whether to perform read or write is controlled by the R/W signal.
Read is performed when the R/W signal is “H” state and write is per-
formed when it is “L” state.
Waveform (1) in Figure 5 is used to access a single byte or two bytes
simultaneously. To read or write two bytes simultaneously, the first
address accessed must be even. Furthermore, when accessing an
external memory area in memory expansion mode or microproces-
sor mode, set the bus width select input pin (BYTE) to “L” (external
data bus width = 16 bits). The internal memory area is always treated
as 16-bit bus width regardless of BYTE.
When performing 16-bit data read or write, if the conditions for simul-
taneously accessing two bytes are not satisfied, waveform (2) is
used to access each byte, one by one.
However, when prefetching the instruction code, if the address of the
instruction code is odd, only one byte is read in the instruction queue
buffer.
Fig. 5 Basic waveforms of bus interface unit
(2)
(1)
E
Internal address bus
(A
0
–A
23
)
Internal data bus
(D
0
–D
7
)
Internal data bus
(D
8
–D
15
)
Data (odd)
Address (odd)
Address (even)
Data (even)
Invalid data
Invalid data
E
Internal address bus
(A
0
–A
23
)
Internal data bus
(D
0
–D
7
)
Internal data bus
(D
8
–D
15
)
Address
Data (even)
Data (odd)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37754M6C | Single Chip 16 Bits CMOS Microcomputer(16位單片機) |
| M378T2953BG0-CC | DDR2 Unbuffered SDRAM MODULE |
| M378T3354BG | DDR2 Unbuffered SDRAM MODULE |
| M378T3354BG0-CC | DDR2 Unbuffered SDRAM MODULE |
| M378T6553BG0-CC | DDR2 Unbuffered SDRAM MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37753M8C-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37753M8C-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37753S4CFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37753S4CHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37754 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16BIT CMOS MICROCOMPUTER |
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