MDT10P55A datasheet(4/11 Pages) ETC1

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MDT10P55A

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P. 4

2006/1

Ver. 1.3

(4) STATUS (Status register) : R3

Bit

Symbol

Function

PAGE

——

PCWUF

Carry bit

Half Carry bit

Zero bit

Power down bit

WDT Timer overflow Flag bit

ROM page select bit

Unimplemented

Pin change wake up from sleep

(5) MSR (Memory Bank Select Register) : R4

Read only “1”

BANK Select

Indirect Addressing Mode

(6) PORT B : R6

PB5~PB0, I/O Register ，PB3 input only.

(7) PORT C: R7

PC5~PC0, I/O Register

(8) TMR (Time Mode Register)

Bit

Symbol

Function

Prescaler Value

RTCC rate

WDT rate

2—0

PS2—0

1 : 2

1 : 4

1 : 8

1 : 16

1 : 32

1 : 64

1 : 128

1 : 256

1 : 1

1 : 2

1 : 4

1 : 8

1 : 16

1 : 32

1 : 64

1 : 128

PSC

Prescaler assignment bit :

0 — RTCC

1 — Watchdog Timer

TCE

RTCC signal Edge :

0 — Increment on low-to-high transition on RTCC pin

1 — Increment on high-to-low transition on RTCC pin

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