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參數(shù)資料
| 型號： | M37735S4LHP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, 12 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 0.50 MM PITCH, FINE PITCH, PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 5/37頁 |
| 文件大?。?/td> | 819K |
| 代理商： | M37735S4LHP |
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12
MITSUBISHI MICROCOMPUTERS
M37735S4LHP
16-BIT CMOS MICROCOMPUTER
New
product
Fig. 11 Relationship between wait bit, wait selection bit, and access time
Wait bit
As shown in Figure 11, when the external memory area is accessed
with the wait bit (bit 2 of the processor mode register 0 at address
5E16) cleared to “0”, the access time can be extended compared with
no wait (the wait bit is “1”).
The access time is extended in two ways and this is selected with the
wait selection bit (bit 0 of the processor mode register 1 at address
5F16).
When this bit is “1”, the access time is 1.5 times compared to that for
no wait. When this bit is “0”, the access time is twice compared to
that for no wait.
At reset, the wait bit and the wait selection bit are “0”.
Access to internal memory area is always performed in the no wait
mode regardless of the wait bit.
The processor modes are described below.
Fig. 10 External memory area for microprocessor mode
(1) Microprocessor mode [10]
The microcomputer enters the microprocessor mode after connecting
the CNVss pin to Vcc and starting from reset.
___
Pin RDE is the output pin for the read enable signal (RDE).
___
RDE
is “L” during the data read term in the read cycle. When the
___
internal memory area is read, RDE can be fixed to “H” by setting the
signal output disable selection bit (bit 6 of the oscillation circuit control
register 0) to “1”.
SFR
RAM
Microprocessor
mode
The shaded area is the external memory area.
Note that banks 1016 to FF16 cannot be accessed.
0016
8016
87F16
FFFFFF16
Internal clock
Ai/Di
RDE
or
WEL
, WEH
ALE
Wait bit “1”
(No wait)
Ai/Di
RDE
or
WEL
, WEH
ALE
Wait bit “0”
(Wait 1)
Access time
Address
Data Address Data
Address
Data
Address
Data
Ai/Di
RDE
or
WEL
, WEH
ALE
Wait bit “0”
(Wait 0)
Access time
Address
Data
Address
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| M37736EHLXXXHP | 16-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQFP100 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37735T-PAC | 制造商:Renesas Electronics Corporation 功能描述:DEV 7733 SIMPLE DEVELOPMENT TOOL PACKAGE - Bulk |
| M37736EHB | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:PROM VERSION OF M37736EHBXXXGP |
| M37736EHBGS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:PROM VERSION OF M37736MHBXXXGP |
| M37736EHBXXXGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:PROM VERSION OF M37736MHBXXXGP(MICROCOMPUTERS) |
| M37736EHL | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:PROM VERSION OF M37736MHLXXXHP(MICROCOMPUTERS) |
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