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Rainbow Electronics W79E8213R User Manual

Page 20

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Preliminary W79E8213/W79E8213R Data Sheet

Publication Release Date: July 11, 2008

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Revision A2

M1 M0

MODE

0 0

Mode 0: 13-bits timer/counter; THx 8 bits and TLx 5 bits which serve as pre-scalar.

0 1

Mode 1: 16-bit timer/counter, no pre-scale.

1 0

Mode 2: 8-bit timer/counter with auto-reload from THx.

1 1

Mode 3: (Timer 0) TL0 is an 8-bit timer/counter controlled by the standard Timer0

control bits. TH0 is an 8-bit timer only controlled by Timer1 control bits.
(Timer 1) Timer/Counter 1 is stopped.

TIMER 0 LSB

Bit:

7 6 5 4 3 2 1 0

TL0.7 TL0.6 TL0.5 TL0.4 TL0.3 TL0.2 TL0.1 TL0.0

Mnemonic: TL0

Address: 8Ah

BIT NAME

FUNCTION

7-0

TL0.[7:0] Timer 0 LSB.

TIMER 1 LSB

Bit:

7 6 5 4 3 2 1 0

TL1.7 TL1.6 TL1.5 TL1.4 TL1.3 TL1.2 TL1.1 TL1.0

Mnemonic: TL1

Address: 8Bh

BIT NAME

FUNCTION

7-0

TL1.[7:0] Timer 1 LSB.

TIMER 0 MSB

Bit:

7 6 5 4 3 2 1 0

TH0.7 TH0.6 TH0.5 TH0.4 TH0.3 TH0.2 TH0.1 TH0.0

Mnemonic: TH0

Address: 8Ch

BIT NAME

FUNCTION

7-0

TH0.[7:0] Timer 0 MSB.

TIMER 1 MSB

Bit:

7 6 5 4 3 2 1 0

TH1.7 TH1.6 TH1.5 TH1.4 TH1.3 TH1.2 TH1.1 TH1.0

Mnemonic: TH1

Address: 8Dh

BIT NAME

FUNCTION

7-0

TH1.[7:0] Timer 1 MSB.