參數(shù)資料
型號: M37920FCCHP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù): 154/158頁
文件大?。?/td> 1261K
代理商: M37920FCCHP
95
M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MITSUBISHI MICROCOMPUTERS
Fig. 90 Bit configuration of DRAM control register
Table 21. Relationship between byte control select bit and pin functions
Byte control select bit
0 (1CAS/2W)
CAS
UCAS
WRH
WRL
W
LCAS
1 (2CAS/1W)
Pin
P94
P95
P96
7
6
543
2
1
0
Self-refresh operation select bit
(Self-refresh operation in the stop mode is controlled.)
0 : Disabled.
1 : Enabled.
Byte control select bit (Note)
0 : 1CAS/2W
1 : 2CAS/1W
Fix this bit to “0”.
Refresh timer count start bit
0 : Counting stopped.
1 : Counting started.
DRAM control register
Address
A816
Note: When the external data bus width = 8 bits, be sure to set this bit to “0” (1CAS/2W).
The value is “0” at reading.
0
000
0
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