ST10R272 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST10R272

16-BIT LOW VOLTAGE ROMLESS MCU WITH MAC

STMicroelectronics 

ST10R272L - POWER REDUCTION MODES

14 POWER REDUCTION MODES

Two different power reduction modes with different levels of power reduction can be entered

under software control.

In Idle mode the CPU is stopped, while the peripherals continue their operation. Idle mode

can be terminated by any reset or interrupt request.

In Power Down mode both the CPU and the peripherals are stopped. Power Down mode can

now be configured by software in order to be terminated only by a hardware reset or by an

external interrupt source on fast external interrupt pins.

All external bus actions are completed before Idle or Power Down mode is entered. However,

Idle or Power Down mode is not entered if READY is enabled, but has not been activated

(driven low for negative polarity, or driven high for positive polarity) during the last bus access.

15 SPECIAL FUNCTION REGISTERS

The following table lists all ST10R272L SFRs in alphabetical order.

Bit-addressable SFRs are marked with the letter “b” in column “Name”. SFRs within the

Extended SFR-Space (ESFRs) are marked with the letter “E” in column “Physical Address”.

An SFR can be specified by its individual mnemonic name. Depending on the selected

addressing mode, an SFR can be accessed by its physical address (using the Data Page

Pointers), or by its short 8-bit address (without using the Data Page Pointers).

Name

Physical

Address

8-Bit

Address

Description

ADDRSEL1 FE18h

0Ch

Address Select Register 1

ADDRSEL2 FE1Ah

0Dh

Address Select Register 2

ADDRSEL3 FE1Ch

0Eh

Address Select Register 3

ADDRSEL4 FE1Eh

0Fh

Address Select Register 4

BUSCON0 b FF0Ch

86h

Bus Configuration Register 0

BUSCON1 b FF14h

8Ah

Bus Configuration Register 1

BUSCON2 b FF16h

BUSCON3 b FF18h

BUSCON4 b FF1Ah

CAPREL

FE4Ah

CC8IC

b FF88h

8Bh

Bus Configuration Register 2

8Ch

Bus Configuration Register 3

8Dh

Bus Configuration Register 4

25h

GPT2 Capture/Reload Register

C4h

EX0IN Interrupt Control Register

Table 13 Special functional registers

Reset

Value

0000h

0000h

0000h

0000h

0XX0h

0000h

0000h

0000h

0000h

0000h

0000h

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