參數(shù)資料
型號(hào): PSD813F4
廠商: 意法半導(dǎo)體
英文描述: Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述: Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器
文件頁(yè)數(shù): 56/110頁(yè)
文件大?。?/td> 1685K
代理商: PSD813F4
PSD813F1
56/110
Address In Mode
For microcontrollers that have more than 16 ad-
dress lines, the higher addresses can be connect-
ed to Port A, B, C, and D. The address input can
be latched in the Input Macrocell by the address
strobe (ALE/AS). Any input that is included in the
DPLD equations for the PLD
s Flash, EEPROM, or
SRAM is considered to be an address input.
Data Port Mode
Port A can be used as a data bus port for a micro-
controller with a non-multiplexed address/data
bus. The Data Port is connected to the data bus of
the microcontroller. The general I/O functions are
disabled in Port A if the port is configured as a
Data Port.
Peripheral I/O Mode
Peripheral I/O Mode can be used to interface with
external peripherals. In this mode, all of Port A
serves as a tri-stateable, bi-directional data buffer
for the microcontroller. Peripheral I/O Mode is en-
abled by setting Bit 7 of the VM Register to a
1.
Figure
28
shows how Port A acts as a bi-direction-
al buffer for the microcontroller data bus if Periph-
eral I/O Mode is enabled. An equation for PSEL0
and/or PSEL1 must be written in PSDabel. The
buffer is tri-stated when PSEL 0 or PSEL1 is not
active.
Figure 28. Peripheral I/O Mode
RD
PSEL0
PSEL1
PSEL
VM REGISTER BIT 7
WR
PA0-PA7
D0-D7
DATA BUS
AI02886
相關(guān)PDF資料
PDF描述
PSD813F5 Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-12J Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-12JI Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-12JIT Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F2-12JT Miniature Switch, High Precision
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PSD813F4-15J 制造商:WSI 功能描述:
PSD813F4-15JI 制造商:WSI 功能描述:
PSD813F4A-90J 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD813F2A-90J RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD813F4A-90M 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD813F2A-90M RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24
PSD813F4VA-15J 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 U 511-PSD813F2VA-15J RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24