參數(shù)資料
型號: UPSD3253BV
廠商: 意法半導體
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core
中文描述: 閃存可編程系統(tǒng)設備與8032微控制器內核
文件頁數(shù): 45/175頁
文件大小: 1731K
代理商: UPSD3253BV
45/175
UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
POWER-SAVING MODE
Two software selectable modes of reduced power
consumption are implemented.
Idle Mode
The following Functions are Switched Off.
– CPU (Halted)
The following Function Remain Active During Idle
Mode.
– External Interrupts
– Timer 0, Timer 1, Timer 2
– DDC Interface
– PWM Units
– USB Interface
– USART
– 8-bit ADC
– I
2
C Interface
Note:
Interrupt or RESET terminates the Idle
Mode.
Power-Down Mode
– System Clock Halted
– LVD Logic Remains Active
– SRAM contents remains unchanged
– The SFRs retain their value until a RESET is as-
serted
Note:
The only way to exit Power-down Mode is a
RESET.
Table 25. Power-Saving Mode Power Consumption
Power Control Register
The Idle and Power-down Modes are activated by software via the PCON register.
Table 26. Pin Status During Idle and Power-down Mode
Table 27. Description of the PCON Bits
Note: 1. See the T2CON register for details of the flag description
Mode
Addr/Data
Ports1,3,4
PWM
I
2
C
DDC
USB
Idle
Maintain Data
Maintain Data
Active
Active
Active
Active
Power-down
Maintain Data
Maintain Data
Disable
Disable
Disable
Disable
SFR
Addr
Reg
Name
Bit Register Name
ValueComments
7
6
5
4
3
2
1
0
87
PCON
SMOD
SMOD1
LVREN ADSFINT RCLK1
TCLK1
PD
IDLE
00
Power Ctrl
Bit
Symbol
Function
7
SMOD
Double baud data rate bit UART
6
SMOD1
Double baud data rate bit 2nd UART
5
LVREN
LVR disable bit (active High)
4
ADSFINT
Enable ADC Interrupt
3
RCLK1
(1)
Received clock flag (UART 2)
2
TCLK1
(1)
Transmit clock flag (UART 2)
1
PD
Activate Power-down Mode (High enable)
0
IDL
Activate Idle Mode (High enable)
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相關代理商/技術參數(shù)
參數(shù)描述
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