UPSD3422_06 Datasheet, PDF (65/293 Pages) STMicroelectronics – Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic

uPSD34xx
Power saving modes
Table 24.
Mode
Idle
Power-
down
MCU Module Port and Peripheral Status during Reduced Power Modes
SPI, I²C,
Ports 1, 3, 4
UART0,1
PCA,
TIMER
0,1,2
USB
ADC
EXT
INT0,1
SUPER-
VISORY
Maintain
Data
Maintain
Data
Active
Active
Active
Active
Active Active⁽¹⁾
Disabled Disabled Disabled Disabled Disabled Disabled
Note: 1 The Watchdog Timer is not active during Idle Mode. Other supervisor functions are active:
LVD, external reset, JTAG Debug reset.
Table 25. State of 8032 MCU Bus Signals during Power-down and Idle Modes
Mode
ALE
PSEN_
RD_
WR_
AD0-7
A8-15
Idle
0
1
1
1
FFh
FFh
Power-down
0
1
1
1
FFh
FFh
65/293