參數(shù)資料
型號: PSD4256G6V-10UIT
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 1M X 8 FLASH, 52 I/O, PIA-GENERAL PURPOSE, PQFP80
封裝: PLASTIC, TQFP-80
文件頁數(shù): 124/127頁
文件大?。?/td> 1091K
代理商: PSD4256G6V-10UIT
Power management
PSD4256G6V
20.7
Input control signals
The PSD provides the option to turn off the address input (A7-A0) and input control signals
(CNTL0, CNTL1, CNTL2, Address Strobe (ALE/AS, PD0) and WRITE-Enable High-byte
(WRH/DBE, PD3)) to the PLD to save AC power consumption. These signals are inputs to
the PLD AND Array. During Power-down mode, or, if any of them are not being used as part
of the PLD logic equation, these control signals should be disabled to save AC power. They
are disconnected from the PLD AND Array by setting bits 0, 2, 3, 4, 5 and 6 to a 1 in
PMMR2.
Table 52.
ADP counter operation
APD Enable
bit
ALE PD
polarity
ALE level
APD counter
0
X
Not counting
1
X
Pulsing
Not counting
1
Counting (generates PDN after 15 clock cycles)
1
0
Counting (generates PDN after 15 clock cycles)
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