ST6209LN1/SWD Ver la hoja de datos (PDF) - STMicroelectronics

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ST6209LN1/SWD

8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET

STMicroelectronics 

ST6208C/ST6209C/ST6210C/ST6220C

MEMORY MAP (Cont’d)

Table 2. Hardware Register Map

Address

Block

Register

Label

Register Name

Reset

Status

Remarks

080h

to 083h

0C0h

0C1h

0C2h

0C3h

0C4h

0C5h

0C6h

0C7h

CPU

I/O Ports

I/O Ports

X,Y, V,W

DRA 1) 2) 3)

DRB 1) 2) 3)

X,Y index registers

V,W short direct registers

Port A Data Register

Port B Data Register

DDRA 2)

DDRB 2)

Reserved (2 Bytes)

Port A Direction Register

Port B Direction Register

Reserved (2 Bytes)

xxh

R/W

00h

R/W

00h

R/W

00h

R/W

00h

R/W

0C8h

0C9h

0CAh

0CBh

0CCh

0CDh

IOR

DRWR

I/O Ports

ORA 2)

ORB 2)

Interrupt Option Register

Data ROM Window register

Reserved (2 Bytes)

Port A Option Register

Port B Option Register

xxh

Write-only

xxh

Write-only

00h R/W

00h R/W

0CEh

0CFh

Reserved (2 bytes)

0D0h

0D1h

0D2h

0D3h

0D4h

0D5h

to 0D7h

0D8h

0D9h

to 0FEh

0FF

ADC 4)

Timer1

ADR

ADCR

PSCR

TCR

TSCR

Watchdog

Timer

WDGR

CPU

A

A/D Converter Data Register

A/D Converter Control Register

Timer 1 Prescaler Register

Timer 1 Downcounter Register

Timer 1 Status Control Register

Reserved (3 Bytes)

Watchdog Register

Reserved (38 Bytes)

Accumulator

xxh

40h

7Fh

0FFh

00h

Read-only

Ro/Wo

R/W

R/W

R/W

0FEh R/W

xxh

R/W

Legend:

x = undefined, R/W = Read/Write, Ro = Read-only Bit(s) in the register, Wo = Write-only Bit(s)

in the register.

Notes:

1. The contents of the I/O port DR registers are readable only in output configuration. In input configura-

tion, the values of the I/O pins are returned instead of the DR register contents.

2. The bits associated with unavailable pins must always be kept at their reset value.

3. Do not use single-bit instructions (SET, RES...) on Port Data Registers if any pin of the port is configured

in input mode (refer to Section 8 ”I/O PORTS” on page 37 for more details)

4. Depending on device. See device summary on page 1.

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