參數(shù)資料
型號(hào): PSD401A1-70U
英文描述: Field-Programmable Peripheral
中文描述: 現(xiàn)場可編程外圍
文件頁數(shù): 71/123頁
文件大?。?/td> 657K
代理商: PSD401A1-70U
PSD4XX Famly
68
CLR
CLK
APD
COUNTER
APD CLK
PMMR1 - BIT 0
TO OTHER
CIRCUITS
MUX
APD
CLEAR
LOGIC
APD ENABLE
PMMR0 - BIT 2
ALE POLARITY
PMMR0 - BIT 1
ALE
RESET
APD CLK
CLKIN
CSI
SLEEP–ENABLE
PMMR1 - BIT 1
SLEEP
MODE
EPROM
SELECT
SRAM
SELECT
I/O
SELECT
POWER
DOWN
PD
Z
P
L
D
Figure 36. Power Management Unit
Figure 36a. Automatic Power Down Unit (APD) Flow Chart
APD DISABLED
NEED
APD CLK
YES
YES
NO
NO
RESET
SET APD CLK IN PMMR1 BIT 0
SET ALE PD POLARITY
IN PMMRO BIT 1
CSI = "1"
NEED
SLEEP
MODE
SET SLEEP MODE IN PMMR1 BIT 1
ALE IDLE and
15 APD CLOCK
ALE IDLE and
15 APD CLOCK
SET ENABLE APD IN PMMR0 BIT 2
SET PMMR0 BIT 0
SET ENABLE APD IN PMMR0 BIT 2
SET PMMR0 BIT 0
DISABLE CLOCKS
ZPLD ACLK, ZPLD RCLK, TMR ZPLD
DISABLE CLOCKS
ZPLD ACLK, ZPLD RCLK, TMR ZPLD
PSD IN POWER DOWN MODE
PSD IN SLEEP MODE
The PSD4XX
Architecture
(cont.)
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