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參數(shù)資料
| 型號(hào)： | DSPIC30F6012-30I/PF |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 146/228頁 |
| 文件大小： | 0K |
| 描述： | IC DSPIC MCU/DSP 144K 64TQFP |
| 產(chǎn)品培訓(xùn)模塊： | Serial Communications using dsPIC30F CAN Serial Communications using dsPIC30F I2C Serial Communications using dsPIC30F SPI Serial Communications using dsPIC30F UART dsPIC30F 12 bit ADC - Part 2 dsPIC30F Addressing Modes - Part 1 dsPIC30F Architecture - Part 1 dsPIC30F DSP Engine & ALU dsPIC30F Interrupts dsPIC30F Motor Control PWM dsPIC Timers Asynchronous Stimulus dsPIC30F Addressing Modes - Part 2 dsPIC30F Architecture - Part 2 dsPIC30F 12-bit ADC Part 1 |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | dsPIC™ 30F |
| 核心處理器： | dsPIC |
| 芯體尺寸： | 16-位 |
| 速度： | 30 MIP |
| 連通性： | CAN，I²C，SPI，UART/USART |
| 外圍設(shè)備： | AC'97，欠壓檢測(cè)/復(fù)位，I²S，LVD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 52 |
| 程序存儲(chǔ)器容量： | 144KB（48K x 24） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 8K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.5 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 16x12b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 64-TQFP |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 651 (CN2011-ZH PDF) |
| 配用： | XLT64PT4-ND - SOCKET TRAN ICE 64MQFP/TQFP AC164313-ND - MODULE SKT FOR PM3 64PF DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE |
| 其它名稱： | DSPIC30F601230IPF DSPIC30F601230IPF-ND |
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dsPIC30F6011/6012/6013/6014
DS70117F-page 22
2006 Microchip Technology Inc.
The SA and SB bits are modified each time data
passes through the adder/subtracter but can only be
cleared by the user. When set, they indicate that the
accumulator has overflowed its maximum range (bit 31
for 32-bit saturation, or bit 39 for 40-bit saturation) and
will be saturated (if saturation is enabled). When satu-
ration is not enabled, SA and SB default to bit 39 over-
flow and thus indicate that a catastrophic overflow has
occurred. If the COVTE bit in the INTCON1 register is
set, SA and SB bits will generate an arithmetic warning
trap when saturation is disabled.
The overflow and saturation status bits can optionally
be viewed in the STATUS register (SR) as the logical
OR of OA and OB (in bit OAB) and the logical OR of SA
and SB (in bit SAB). This allows programmers to check
one bit in the STATUS register to determine if either
accumulator has overflowed, or one bit to determine if
either accumulator has saturated. This would be useful
for complex number arithmetic which typically uses
both the accumulators.
The device supports three saturation and overflow
modes:
1.
Bit 39 Overflow and Saturation:
When bit 39 overflow and saturation occurs, the
saturation logic loads the maximally positive 9.31
(0x7FFFFFFFFF), or maximally negative 9.31
value (0x8000000000) into the target accumula-
tor. The SA or SB bit is set and remains set until
cleared by the user. This is referred to as ‘super
saturation’ and provides protection against erro-
neous data, or unexpected algorithm problems
(e.g., gain calculations).
2.
Bit 31 Overflow and Saturation:
When bit 31 overflow and saturation occurs, the
saturation logic then loads the maximally posi-
tive 1.31 value (0x007FFFFFFF), or maximally
negative 1.31 value (0x0080000000) into the
target accumulator. The SA or SB bit is set and
remains set until cleared by the user. When this
Saturation mode is in effect, the guard bits are
not used (so the OA, OB or OAB bits are never
set).
3.
Bit 39 Catastrophic Overflow:
The bit 39 overflow status bit from the adder is
used to set the SA or SB bit which remain set
until cleared by the user. No saturation opera-
tion is performed and the accumulator is allowed
to overflow (destroying its sign). If the COVTE
bit in the INTCON1 register is set, a catastrophic
overflow can initiate a trap exception.
2.4.2.2
Accumulator ‘Write Back’
The MAC class of instructions (with the exception of
MPY,
MPY.N,
ED
and EDAC) can optionally write a
rounded version of the high word (bits 31 through 16)
of the accumulator that is not targeted by the instruction
into data space memory. The write is performed across
the X bus into combined X and Y address space. The
following addressing modes are supported:
1.
W13, Register Direct:
The
rounded
contents
of
the
non-target
accumulator are written into W13 as a 1.15
fraction.
2.
[W13] + = 2, Register Indirect with
Post-Increment:
The rounded contents of the non-target accumu-
lator are written into the address pointed to by
W13
as
a
1.15
fraction.
W13
is
then
incremented by 2 (for a word write).
2.4.2.3
Round Logic
The round logic is a combinational block which per-
forms a conventional (biased) or convergent (unbi-
ased) round function during an accumulator write
(store). The Round mode is determined by the state of
the RND bit in the CORCON register. It generates a 16-
bit, 1.15 data value which is passed to the data space
write saturation logic. If rounding is not indicated by the
instruction, a truncated 1.15 data value is stored and
the least significant word (lsw) is simply discarded.
Conventional rounding takes bit 15 of the accumulator,
zero-extends it and adds it to the ACCxH word (bits 16
through 31 of the accumulator). If the ACCxL word
(bits 0 through 15 of the accumulator) is between
0x8000 and 0xFFFF (0x8000 included), ACCxH is
incremented. If ACCxL is between 0x0000 and
0x7FFF, ACCxH is left unchanged. A consequence of
this algorithm is that over a succession of random
rounding operations, the value will tend to be biased
slightly positive.
Convergent (or unbiased) rounding operates in the
same manner as conventional rounding, except when
ACCxL equals 0x8000. If this is the case, the LSb
(bit 16 of the accumulator) of ACCxH is examined. If it
is ‘1’, ACCxH is incremented. If it is ‘0’, ACCxH is not
modified. Assuming that bit 16 is effectively random in
nature, this scheme will remove any rounding bias that
may accumulate.
The SAC and SAC.R instructions store either a trun-
cated (SAC) or rounded (SAC.R) version of the contents
of the target accumulator to data memory via the X bus
(subject to data saturation, see Section 2.4.2.4 “Data
Space Write Saturation”). Note that for the MAC class
of instructions, the accumulator write back operation
will function in the same manner, addressing combined
MCU (X and Y) data space though the X bus. For this
class of instructions, the data is always subject to
rounding.
相關(guān)PDF資料 |
PDF描述 |
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| HM2SC22BLF | HM2SC22BLF MPACS SHIELD COVERS |
| HM2SC25BLF | HM2SC25BLF HM2 SHIELDING COVER |
| HM2SC11B | HM2SC11B-MPACS SHIELD COVERS |
| HM2SC11A8LF | HM2SC11A8LF MILLIPACS SHIELDING |
| HM2SC11A8 | HM2SC11A8-MILLIPACS SHIELDING |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| dsPIC30F6012A-20E/PF | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 20MIPS 144 KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| dsPIC30F6012A-20E/PT | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 20MIPS 144 KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| DSPIC30F6012A-20I/PT | 功能描述:IC DSPIC MCU/DSP 144K 64TQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:dsPIC™ 30F 產(chǎn)品培訓(xùn)模塊:XLP Deep Sleep Mode 8-bit PIC® Microcontroller Portfolio 標(biāo)準(zhǔn)包裝:22 系列:PIC® XLP™ 18F 核心處理器:PIC 芯體尺寸:8-位 速度:48MHz 連通性:I²C，SPI，UART/USART，USB 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):14 程序存儲(chǔ)器容量:8KB（4K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:256 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:20-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁面:642 (CN2011-ZH PDF) 配用:DV164126-ND - KIT DEVELOPMENT USB W/PICKIT 2DM164127-ND - KIT DEVELOPMENT USB 18F14/13K50AC164112-ND - VOLTAGE LIMITER MPLAB ICD2 VPP |
| DSPIC30F6012A-20I/PTG | 制造商:Microchip Technology Inc 功能描述:16BIT 20MIPS DSPIC SMD 30F6012 |
| dsPIC30F6012A-30I/PF | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 30MIPS 144 KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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