参数资料
型号: uPSD3212CV
厂商: 意法半导体
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(带8032微控制器内核和16Kbit SRAM的FLASH可编程系统器件)
中文描述: 闪存可编程系统设备与8032微控制器内核和16Kbit的SRAM(带8032微控制器内核和16Kbit SRAM的的闪存可编程系统器件)
文件页数: 101/151页
文件大小: 1194K
代理商: UPSD3212CV
101/151
uPSD3212C, uPSD3212CV
Product Term Allocator
The CPLD has a Product Term Allocator. PSDsoft
uses the Product Term Allocator to borrow and
place product terms from one macrocell to anoth-
er. The following list summarizes how product
terms are allocated:
McellAB0-McellAB7 all have three native
product terms and may borrow up to six more
McellBC0-McellBC3 all have four native
product terms and may borrow up to five more
McellBC4-McellBC7 all have four native
product terms and may borrow up to six more.
Each macrocell may only borrow product terms
from certain other macrocells. Product terms al-
ready in use by one macrocell are not available for
another macrocell.
If an equation requires more product terms than
are available to it, then “external” product terms
are required, which consume other Output Macro-
cells (OMC). If external product terms are used,
extra delay is added for the equation that required
the extra product terms.
This is called product term expansion. PSDsoft
Express performs this expansion as needed.
Loading and Reading the Output Macrocells
(OMC).
The Output Macrocells (OMC) block oc-
cupies a memory location in the MCU address
space, as defined by the CSIOP block (see the
section entitled “I/O PORTS (PSD MODULE),” on
page 103). The flip-flops in each of the 16 Output
Macrocells (OMC) can be loaded from the data
bus by a MCU. Loading the Output Macrocells
(OMC) with data from the MCU takes priority over
internal functions. As such, the preset, clear, and
clock inputs to the flip-flop can be overridden by
the MCU. The ability to load the flip-flops and read
them back is useful in such applications as load-
able counters and shift registers, mailboxes, and
handshaking protocols.
Data can be loaded to the Output Macrocells
(OMC) on the trailing edge of WRITE Strobe (WR,
edge loading) or during the time that WRITE
Strobe (WR) is active (level loading). The method
of loading is specified in PSDsoft Express Config-
uration.
Figure 50. CPLD Output Macrocell
PT
ALLOCATOR
MASK
REG.
PT CLK
PT
PT
PT
CLKIN
FEEDBACK (.FB)
PORT INPUT
A
P
MUX
MUX
POLARITY
SELECT
LD
IN
CLR
Q
PR
DIN
COMB/REG
SELECT
PORT
DRIVER
INPUT
MACROCELL
I/O PIN
MACROCELL
ALLOCATOR
MCU DATA BUS
D[7:0]
DIRECTION
REGISTER
CLEAR (.RE)
PROGRAMMABLE
WR
ENABLE (.OE)
PRESET(.PR)
RD
MACROCELL CS
AI06617
相关PDF资料
PDF描述
uPSD3212 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可编程系统器件)
UPSD3215A-24T1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3215AV-40T6T 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3215BV-24U1 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
UPSD3233A-40T6 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
相关代理商/技术参数
参数描述
UPSD3212CV-24T1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212CV-24T6 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
UPSD3212CV-24T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212CV-24U1T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM
UPSD3212CV-24U6 功能描述:8位微控制器 -MCU 3.0V 512K 24MHz RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT