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)： 84/152頁(yè)
文件大小： 1558K
代理商： UPSD3412C-40U6T
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UPSD3212C, UPSD3212CV
84/152
PSD MODULE DETAILED OPERATION
As shown in Figure 15, the PSD MODULE con-
sists of five major types of functional blocks:
I
Memory Block
I
PLD Blocks
I
I/O Ports
I
Power Management Unit (PMU)
I
JTAG Interface
The functions of each block are described in the
following sections. Many of the blocks perform
multiple functions, and are user configurable.
MEMORY BLOCKS
The PSD MODULE has the following memory
blocks:
I
Primary Flash memory
I
Secondary Flash memory
I
SRAM
The Memory Select signals for these blocks origi-
nate from the Decode PLD (DPLD) and are user-
defined in PSDsoft Express.
Primary Flash Memory and Secondary Flash
memory Description
The primary Flash memory is divided into 4 sec-
tors (16KBytes each). The secondary Flash mem-
ory is divided into 2 sectors (8KBytes each). Each
sector of either memory block can be separately
protected from Program and Erase cycles.
Flash memory may be erased on a sector-by-sec-
tor basis. Flash sector erasure may be suspended
while data is read from other sectors of the block
and then resumed after reading.
During a Program or Erase cycle in Flash memory,
the status can be output on Ready/Busy (PC3).
This pin is set up using PSDsoft Express Configu-
ration.
Memory Block Select Signals
The DPLD generates the Select signals for all the
internal memory blocks (see the section entitled
“PLDs,” page 97). Each of the eight sectors of the
primary Flash memory has a Select signal (FS0-
FS3) which can contain up to three product terms.
Each of the 2 sectors of the secondary Flash
memory has a Select signal (CSBOOT0-
CSBOOT1) which can contain up to three product
terms. Having three product terms for each Select
signal allows a given sector to be mapped in Pro-
gram or Data space.
Ready/Busy (PC3).
This signal can be used to
output the Ready/Busy status of the Flash memo-
ry. The output on Ready/Busy (PC3) is a 0 (Busy)
when Flash memory is being written to, or
when
Flash memory is being erased. The output is a 1
(Ready) when no WRITE or Erase cycle is in
progress.
Memory Operation.
The primary Flash memory
and secondary Flash memory are addressed
through the MCU Bus. The MCU can access these
memories in one of two ways:
– The MCU can execute a typical bus WRITE or
READ operation
– The MCU can execute a specific Flash memory
instruction
that consists of several WRITE and
READ operations. This involves writing specific
data patterns to special addresses within the
Flash memory to invoke an embedded algo-
rithm. These instructions are summarized in Ta-
ble 62.
Typically, the MCU can read Flash memory using
READ operations, just as it would read a ROM de-
vice. However, Flash memory can only be altered
using specific Erase and Program instructions. For
example, the MCU cannot write a single byte di-
rectly to Flash memory as it would write a byte to
RAM. To program a byte into Flash memory, the
MCU must execute a Program instruction, then
test the status of the Program cycle. This status
test is achieved by a READ operation or polling
Ready/Busy (PC3).
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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(xiàn)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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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(xiàn)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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