MDT2005IB 参数 Datasheet PDF下载

MDT2005(IB)

(4) STATUS (Status register) : R3

Bit

0

1

2

3

4

5-7

Symbol

C

HC

Z

PF

TF

——

Carry bit

Half Carry bit

Zero bit

Power loss Flag bit

Time overflow Flag bit

General purpose bit

Function

(5) MSR (Memory Select Register) : R4

(6) PORT A : R5

PA3~PA0, I/O Register

(7) PORT B : R6

PB7~PB0, I/O Register

(8) TMR (Time Mode Register)

Bit

Symbol

Prescaler Value

Function

RTCC rate

WDT rate

0 0 0

1:2

1:1

0 0 1

1:4

1:2

0 1 0

1:8

1:4

0 1 1

1 : 16

1:8

1 0 0

1 : 32

1 : 16

1 0 1

1 : 64

1 : 32

1 1 0

1 : 128

1 : 64

1 1 1

1 : 256

1 : 128

Prescaler assignment bit :

0

—

RTCC

1

—

Watchdog Timer

RTCC signal Edge :

0

—

Increment on low-to-high transition on RTCC pin

1

—

Increment on high-to-low transition on RTCC pin

RTCC signal set :

0

—

Internal instruction cycle clock

1

—

Transition on RTCC pin

2—0

PS2—0

3

PSC

4

TCE

5

TCS

This specification are subject to be changed without notice. Any latest information please preview

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P. 3

2005/6 VER1.3