參數資料
型號: PSD412A2-C-90UI
廠商: 意法半導體
英文描述: DIODE SCHOTTKY 40V 30MA 0603
中文描述: 低成本現場可編程微控制器外圍設備
文件頁數: 27/123頁
文件大?。?/td> 657K
代理商: PSD412A2-C-90UI
Signal Name
From
PA0 – PA7
Port A inputs or Macrocell PA feedback
PB0 – PB7
Port B inputs or Macrocell PB feedback
PE0 – PE7
Port E inputs or Macrocell PE feedback
PC0 – PC7
Port C inputs
PD0 – PD7
Port D inputs
PGR0 – PGR3
Page Mode Register
A8 – A15, A0, A1
MCU Address Lines
RD/E/DS
MCU bus signal
WR/R_W
MCU bus signal
CLKIN
Input Clock
RESET
Reset input
CSI
CSI input (ORed with power down from PMU)
PSD4XX Famly
24
Table 4. ZPLDInput Signals
The PSD4XX
Architecture
(cont.)
9.1.2.1 The DPLD
The DPLD is used for internal address decoding generating the following eight chip select
signals:
J
ES0 – ES3
EPROM selects, block 0 to block 3
J
RS0
SRAM block select
J
CSIOP
I/O Decoder chip select
J
PSEL0 – PSEL1
Peripheral I/O mode select signals
The I/O Decoder enabled by the CSIOP generates chip selects for on-chip registers or I/O
ports based on address inputs A[7:0].
As shown in Figure 12, the DPLD consists of a large programmable AND ARRAY. There
are a total of 59 inputs and 8 outputs. Each output consists of a single product term.
Although the user can generate select signals from any of the inputs, the select signals are
typically a function of the address and Page Register inputs. The select signals are defined
by the user in the ABEL file (PSDabel).
The address line inputs to the DPLD include A0, A1 and A8 – A15. If more address lines
are needed, the user can bring in the lines through Port A to the DPLD.
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PSD411A1 Field Programmable Microcontroller Peripherals(可編程邏輯,16K位SRAM,40個可編程I/O,通用PLD有37個輸入)
PSD412A1 Field Programmable Microcontroller Peripherals(可編程邏輯,16K位SRAM,40個可編程I/O,通用PLD有37個輸入)
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