- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376275 > PSD833215MIT (意法半導(dǎo)體) Flash In-System Programmable ISP Peripherals For 8-bit MCUs PDF資料下載
參數(shù)資料
| 型號： | PSD833215MIT |
| 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 |
| 文件頁數(shù)： | 51/110頁 |
| 文件大小： | 1737K |
| 代理商： | PSD833215MIT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁當(dāng)前第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁
51/110
PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2
I/O PORTS
There are four programmable I/O ports: Ports A, B,
C, and D. Each of the ports is eight bits except Port
D, which is 3 bits. Each port pin is individually user
configurable, thus allowing multiple functions per
port. The ports are configured using PSDsoft Ex-
press Configuration or by the MCU writing to on-
chip registers in the CSIOP space.
The topics discussed in this section are:
General Port architecture
Port operating modes
Port Configuration Registers (PCR)
Port Data Registers
Individual Port functionality.
General Port Architecture
The general architecture of the I/O Port block is
shown in
Figure 26., page 52
. Individual Port ar-
chitectures are shown in
Figure 28., page 58
to
Figure 31., page 61
. In general, once the purpose
for a port pin has been defined, that pin is no long-
er available for other purposes. Exceptions are
noted.
As shown in
Figure 26., page 52
, the ports contain
an output multiplexer whose select signals are
driven by the configuration bits in the Control Reg-
isters (Ports A and B only) and PSDsoft Express
Configuration. Inputs to the multiplexer include the
following:
Output data from the Data Out register
Latched address outputs
CPLD macrocell output
External Chip Select (ECS0-ECS2) from the
CPLD.
The Port Data Buffer (PDB) is a tri-state buffer that
allows only one source at a time to be read. The
Port Data Buffer (PDB) is connected to the Internal
Data Bus for feedback and can be read by the
MCU. The Data Out and macrocell outputs, Direc-
tion and Control Registers, and port pin input are
all connected to the Port Data Buffer (PDB).
■
■
■
■
■
■
■
■
■
The Port pin’s tri-state output driver enable is con-
trolled by a two input OR gate whose inputs come
from the CPLD AND Array enable product term
and the Direction Register. If the enable product
term of any of the Array outputs are not defined
and that port pin is not defined as a CPLD output
in the PSDabel file, then the Direction Register has
sole control of the buffer that drives the port pin.
The contents of these registers can be altered by
the MCU. The Port Data Buffer (PDB) feedback
path allows the MCU to check the contents of the
registers.
Ports A, B, and C have embedded Input Macro-
cells (IMC). The Input Macrocells (IMC) can be
configured as latches, registers, or direct inputs to
the PLDs. The latches and registers are clocked
by Address Strobe (ALE/AS, PD0) or a product
term from the PLD AND Array. The outputs from
the Input Macrocells (IMC) drive the PLD input bus
and can be read by the MCU. See the section en-
titled
Input Macrocell, page 41
.
Port Operating Modes
The I/O Ports have several modes of operation.
Some modes can be defined using PSDabel,
some by the MCU writing to the Control Registers
in CSIOP space, and some by both. The modes
that can only be defined using PSDsoft Express
must be programmed into the device and cannot
be changed unless the device is reprogrammed.
The modes that can be changed by the MCU can
be done so dynamically at run-time. The PLD I/O,
Data Port, Address Input, and Peripheral I/O
modes are the only modes that must be defined
before programming the device. All other modes
can be changed by the MCU at run-time. See Ap-
plication Note
AN1171
for more detail.
Table 19., page 53
summarizes which modes are
available on each port.
Table 22., page 56
shows
how and where the different modes are config-
ured. Each of the port operating modes are de-
scribed in the following sections.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PSD853215MIT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD953215MIT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD814215MIT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD914215MIT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD834215MIT | Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD833F2-90J | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 1M 90ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD833F2-90JI | 功能描述:SPLD - 簡單可編程邏輯器件 5.0V 1M 90ns 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 |
| PSD833F2-90M | 功能描述:SPLD - 簡單可編程邏輯器件 5.0V 1M 90ns 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 |
| PSD833F2-90MI | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 5.0V 1M 90ns RoHS:否 制造商:Lattice 系列: 存儲類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD834F2-15M | 制造商:STMicroelectronics 功能描述:Flash In-System Programmable Peripherals 52-Pin PQFP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。