TLC156 Datasheet, PDF(5/50 Page) List of Unclassifed Manufacturers – EPROM/ROM-Based 8-Bit Microcontroller Series

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TLC156 Datasheet, PDF (5/50 Pages) List of Unclassifed Manufacturers – EPROM/ROM-Based 8-Bit Microcontroller Series

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TLC

TLC156

1.2 Data Memory Organization

Data memory is composed of Special Function Registers and General Purpose Registers.

The General Purpose Registers are accessed either directly or indirectly through the FSR register.

The Special Function Registers are registers used by the CPU and peripheral functions to control the

operation of the device.

In TLC157, the data memory is partitioned into four banks. Switching between these banks requires the RP1

and RP0 bits in the FSR register to be configured for the desired bank.

TABLE 1.1: Operational Registers Map

Address

Name

N/A (w) OPTION

INTEDG T0CS T0SE PSA

PS2

PS1

PS0

N/A (w)

IOSTA

Port A I/O Control Register

N/A (w)

IOSTB

Port B I/O Control Register

N/A (w)

IOSTC

Port C I/O Control Register

00h (r/w)

INDF

Uses contents of FSR to address data memory (not a physical register)

01h (r/w)

TMR0

8-bit real-time clock/counter

02h (r/w)

PCL

Low order 8 bits of PC

03h (r/w) STATUS GP2

GP1

GP0

04h (r/w)

FSR

RP1 (3) RP0 (3)

Indirect data memory address pointer

05h (r/w) PORTA

IOA3 IOA2 IOA1 IOA0

06h (r/w) PORTB

07h (r/w) PORTC (1)

IOB7

IOC7

IOB6

IOC6

IOB5

IOC5

IOB4

IOC4

IOB3

IOC3

IOB2

IOC2

IOB1

IOC1

IOB0

IOC0

08h (r/w) PCON WDTE EIS LVDTE ROC

09h (r/w) WUCON WUB7

0Ah (r/w) PCHBUF (2)

WUB6

WUB5

WUB4

WUB3

WUB2 WUB1 WUB0

Upper 3 bits Buffer of PC

0Bh (r/w) PDCON /PDB3 /PDB2 /PDB1 /PDB0 /PDA3 /PDA2 /PDA1 /PDA0

0Ch (r/w) ODCON ODB7 ODB6 ODB5 ODB4 ODB3 ODB2 ODB1 ODB0

0Dh (r/w) PHCON /PHB7 /PHB6 /PHB5 /PHB4 /PHB3 /PHB2 /PHB1 /PHB0

0Eh (r/w) INTEN

GIE

INTIE PBIE T0IE

0Fh (r/w) INTFLAG

INTIF PBIF

T0IF

Legend: - = unimplemented, read as â0â,

Note 1 : PORTC is an 8-bit I/O Register for TLC155/157.

PORTC is a General Purpose Register for TLC154/156.

2 : There is only 1 bit in TLC154/155. There are only 2 bits in TLC156. And there are 3 bits in

TLC157.

3 : For TLC154/155/156, these bits are not used, read as â1â

Rev0.95 Nov 20, 2003

P.2/TLC156

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