參數(shù)資料
型號: PSD302L
英文描述: Field Programmable Microcontroller Peripherals(可編程邏輯,16K位SRAM,19個可編程I/O,通用PLD有16個輸入)
中文描述: 現(xiàn)場可編程微控制器外圍設備(可編程邏輯,16K的位的SRAM,19余個可編程輸入/輸出,通用PLD的有16個輸入)
文件頁數(shù): 15/127頁
文件大?。?/td> 682K
代理商: PSD302L
2-15
PSD3XX Famly
Configuration
Bits
CDATA
(Note 13)
No.
of Bits
Function
8-bit or 16-bit Data Bus Width
CDATA = 0 eight bits
CDATA = 1 sixteen bits
ADDRESS/DATA Multiplexed (separate buses)
CADDRDAT = 0, non-multiplexed
CADDRDAT = 1, multiplexed
A19 or CSI
CA19/CSI = 0, enable power-down
CA19/CSI = 1, enable A19 input to PAD
Active HIGH or Active LOW
CALE = 0, Active high
CALE = 1, Active low
Active high or active low
CRESET = 0, active low reset signal
CRESET = 1, active high reset signal
Combined or Separate Address Space
for SRAM and EPROM
0 = Combined, 1 = Separate
Port A I/Os or A0–A7
CPAF1 = 0, Port A pin = I/O
CPAF1 = 1, Port A pin = A0 – A7
Port A AD0–AD7 (address/data multiplexed bus)
CPAF2 = 0, address or I/O on Port A (according to CPAF1)
CPAF2 = 1, address/data multiplexed on Port A (track mode)
A16–A19 address or logic inputs
CATD = 0, logic inputs
CATD = 1, address inputs
A16–A19 Transparent or Latched
CADDHLT = 0, Address latch transparent
CADDHLT = 1, Address latched (ALE dependent)
SECURITY On/Off
CSECURITY = 0, off
CSECURITY = 1, on
A0–A15 Address Inputs are transparent or
ALE-dependent in non-multiplexed modes
CLOT = 0, transparent
CLOT = 1, ALE-dependent
Determine the polarity and control methods of read and
write cycles.
CEDS
CRRWR
0
0
RD and WR active low pulses
0
1
R/W status and high E pulse
1
1
R/W status and low DS pulse
CRRWR = 0, RD and WR active low strobes
CRRWR = 1, R/W status and E active high pulse
Port A CMOS or Open Drain Output
CPACOD = 0, CMOS output
CPACOD = 1, open-drain output
1
CADDRDAT
1
CA19/CSI
1
CALE
1
CRESET
1
COMB/SEP
1
CPAF1
8
CPAF2
1
CATD
(Note 15)
1
CADDHLT
1
CSECURITY
1
CLOT
(Note 14)
1
CRRWR
CEDS
(Note 14)
2
CRRWR
(Note 15)
1
CPACOD
8
Table 5.
PSD3XX
Configuration
Bits
11,12
相關PDF資料
PDF描述
PSD303R Field Programmable Microcontroller Peripherals(可編程邏輯,無SRAM,19個可編程I/O,通用PLD有16個輸入)
PSD304RL Field Programmable Microcontroller Peripherals(可編程邏輯,無SRAM,19個可編程I/O,通用PLD有16個輸入)
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PSD312R Field Programmable Microcontroller Peripherals(可編程邏輯,無SRAM,4位頁寄存器,19個可編程I/O,通用PLD有16個輸入)
PSD313L Field Programmable Microcontroller Peripherals(可編程邏輯,16K位SRAM,19個可編程I/O,通用PLD有16個輸入)
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