參數(shù)資料
型號(hào): uPSD3412C-40U6T
廠商: 意法半導(dǎo)體
英文描述: 320 x 240 pixel format, CFL backlight available with power harness
中文描述: 閃存可編程系統(tǒng)設(shè)備與8032微控制器核心和16Kbit SRAM的
文件頁(yè)數(shù): 102/152頁(yè)
文件大?。?/td> 1558K
代理商: UPSD3412C-40U6T
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UPSD3212C, UPSD3212CV
102/152
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:
I
McellAB0-McellAB7 all have three native
product terms and may borrow up to six more
I
McellBC0-McellBC3 all have four native product
terms and may borrow up to five more
I
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 104). 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 51. 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
FF (D/T/JK/SR)
WR
ENABLE (.OE)
PRESET(.PR)
RD
MACROCELL CS
AI06617
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UPSD3422E-40T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3422E-40U6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3422EB40T6 功能描述:8位微控制器 -MCU Turbo 8032 MCU w/USB & Programmable Logic RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
UPSD3422EB40U6 功能描述:8位微控制器 -MCU uPSD34x Turbo Plus Fast Turbo 8032 MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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