參數(shù)資料
型號(hào)： UPSD3352DV-40T6T
廠商： 意法半導(dǎo)體
英文描述： Turbo Series Fast 8032 MCU with Programmable Logic
中文描述： Turbo系列8032微控制器的快速可編程邏輯
文件頁(yè)數(shù)： 48/231頁(yè)
文件大?。?/td> 3722K
代理商： UPSD3352DV-40T6T
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uPSD33xx
48/231
POWER SAVING MODES
The uPSD33xx is a combination of two die, or
modules, each module having it’s own current
consumption characteristics. This section de-
scribes reduced power modes for the MCU Mod-
ule.
See
the
Management, page 137
for reduced power modes
of the PSD Module. Total current consumption for
the combined modules is determined in the DC
specifications at the end of this document.
The MCU Module has three software-selectable
modes of reduced power operation.
Idle Mode
Power-down Mode
Reduced Frequency Mode
Idle Mode
Idle Mode will halt the 8032 MCU core while leav-
ing the MCU peripherals active (Idle Mode blocks
MCU_CLK only). For lowest current consumption
in this mode, it is recommended to disable all un-
used peripherals, before entering Idle mode (such
as the ADC and the Debug Unit breakpoint com-
parators). The following functions remain fully ac-
tive during Idle Mode (except if disabled by SFR
settings).
External Interrupts INT0 and INT1
Timer 0, Timer 1 and Timer 2
Supervisor reset from: LVD, JTAG Debug,
External RESET_IN_, but
not
the WTD
ADC
I
2
C Interface
UART0 and UART1 Interfaces
SPI Interface
Programmable Counter Array
An interrupt generated by any of these peripher-
als, or a reset generated from the supervisor, will
cause Idle Mode to exit and the 8032 MCU will re-
sume normal operation.
The output state on I/O pins of MCU ports 1, 3, and
4 remain unchanged during Idle Mode.
To enter Idle Mode, the 8032 MCU executes an in-
struction to set the IDL bit in the SFR named
PCON, shown in
Table 24., page 50
. This is the
last instruction executed in normal operating mode
before Idle Mode is activated. Once in Idle Mode,
the MCU status is entirely preserved, and there
are no changes to: SP, PSW, PC, ACC, SFRs,
DATA, IDATA, or XDATA.
The following are factors related to Idle Mode exit:
–
Activation of any enabled interrupt will cause
the IDL bit to be cleared by hardware,
terminating Idle Mode. The interrupt is
serviced, and following the Return from
section,
Power
■
■
■
■
■
■
■
■
■
■
■
Interrupt instruction (RETI), the next
instruction to be executed will be the one
which follows the instruction that set the IDL
bit in the PCON SFR.
After a reset from the supervisor, the IDL bit is
cleared, Idle Mode is terminated, and the MCU
restarts after three MCU machine cycles.
Power-down Mode
Power-down Mode will halt the 8032 core and all
MCU peripherals (Power-down Mode blocks
MCU_CLK and PERIPH_CLK). This is the lowest
power state for the MCU Module. When the PSD
Module is also placed in Power-down mode, the
lowest total current consumption for the combined
die is achieved for the uPSD33xx. See
Power
Management, page 137
in the PSD Module sec-
tion for details on how to also place the PSD Mod-
ule in Power-down mode. The sequence of 8032
instructions is important when placing both mod-
ules into Power-down Mode.
The instruction that sets the PD Bit in the SFR
named PCON (
Table 24., page 50
) is the last in-
struction executed prior to the MCU Module going
into Power-down Mode. Once in Power-down
Mode, the on-chip oscillator circuitry and all clocks
are
stopped.
The
SFRs,
and XDATA are preserved.
Power-down Mode is terminated only by a reset
from the supervisor, originating from the
RESET_IN_ pin, the Low-Voltage Detect circuit
(LVD), or a JTAG Debug reset command. Since
the clock to the WTD is not active during Power-
down mode, it is not possible for the supervisor to
generate a WDT reset.
Table 22., page 49
summarizes the status of I/O
pins and peripherals during Idle and Power-down
Modes on the MCU Module.
Table 23., page 49
shows the state of 8032 MCU address, data, and
control signals during these modes.
Reduced Frequency Mode
The 8032 MCU consumes less current when oper-
ating at a lower clock frequency. The MCU can re-
duce it’s own clock frequency at run-time by
writing to three bits, CPUPS[2:0], in the SFR
named CCON0 described in
Table 21., page 47
.
These bits effectively divide the clock frequency
(f
OSC
) coming in from the external crystal or oscil-
lator device. The clock division range is from 1/2 to
1/2048, and the resulting frequency is f
MCU
.
This MCU clock division does not affect any of the
peripherals, except for the WTD. The clock driving
the WTD is the same clock driving the 8032 MCU
core as shown in
Figure 14., page 46
.
–
DATA,
IDATA,
相關(guān)PDF資料
PDF描述
UPSD3352DV-40U6T Turbo Series Fast 8032 MCU with Programmable Logic
UPSD3353DV-40T6T Turbo Series Fast 8032 MCU with Programmable Logic
UPSD3353DV-40U6T Turbo Series Fast 8032 MCU with Programmable Logic
UPSD3354DV-40T6T Turbo Series Fast 8032 MCU with Programmable Logic
UPSD33XX Fast 8032 MCU with Programmable Logic
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPSD3354D-40T6 功能描述:8位微控制器 -MCU 8032 MCU USB 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
UPSD3354D-40U6 功能描述:8位微控制器 -MCU 8BIT Fast 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
UPSD3354DV-40T6 功能描述:8位微控制器 -MCU 8032 MCU USB 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
UPSD3354DV-40U6 功能描述:8位微控制器 -MCU FAST 8032 8BIT 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
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
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