UPSD3422 datasheet(66/293 Pages) STMICROELECTRONICS

tên linh kiện	UPSD3422

Giải thích chi tiết về linh kiện	Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic

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Power saving modes

uPSD34xx

66/293

Table 26.

PCON: Power Control Register (SFR 87h, reset value 00h)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SMOD0

SMOD1

–

POR

RCLK1

TCLK1

IDL

Bit

Symbol

R/W

Function

SMOD0

R,W

Baud Rate Double Bit (UART0)

0 = No Doubling

1 = Doubling

(See Section 21.3: UART baud rates on page 102 for details.)

SMOD1

R,W

Baud Rate Double Bit for 2nd UART (UART1)

0 = No Doubling

1 = Doubling

(See Section 21.3: UART baud rates on page 102 for details.)

–

Reserved

4POR

R,W

Only a power-on reset sets this bit (cold reset). Warm reset

will not set this bit.

0 = Cleared to zero with firmware

1 = Is set only by a power-on reset generated by Supervisory

circuit (see Section 19.3: Power-up reset on page 84 for

details).

RCLK1

R,W

Received Clock Flag (UART1)

(See Table 43 on page 93 for flag description.)

TCLK1

R,W

Transmit Clock Flag (UART1)

(See Table 43 on page 93 for flag description)

1PD

R,W

Activate Power-down Mode

0 = Not in Power-down Mode

1 = Enter Power-down Mode

IDL

R,W

Activate Idle Mode

0 = Not in Idle Mode

1 = Enter Idle Mode

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