EM78M611E

Universal Serial Bus Series Microcontroller

A12 A11 A10

A9 A8

A7~A0

0000

Page 0

03FF

0400

Page 1

07FF

0800

Page 2

0BFF

1000

Page 0

13FF

1400

Page 0

17FF

Call

 

Interrupt

 

 

Stack 1

RET

Stack 2

RETL

 

Stack 3

RETI

 

Stack 4

 

 

 

 

Stack 5

 

Stack 6

 

Stack 7

 

 

 

Stack 8

 

 

0000 : Reset Vector

0001 : Interrupt Vector

8.2.2.4R3 (Status Register) Default Value:(0B_0001_1XXX)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

PS2

PS1

PS0

T

P

Z

DC

C

R3 [0] Carry/Borrow Flag

0 = No carry-out from the result’s Most Significant bit

1 = A carry-out from the result’s Most Significant bit occurred

NOTE

For Borrow, the polarity is reversed. For rotate (RRC, RLC) instructions, this bit is loaded with either high or low-order bit of the source register.

R3 [1] Auxiliary Carry/Borrow Flag. For ADD, SUB Instructions 0 = No carry-out from the 4th low-order bit of the result

1 = A carry-out from the 4th low-order bit of the result occurred

NOTE

For Borrow, the polarity is reversed.

Product Specification (V1.11) 04.20.2007

11

(This specification is subject to change without further notice)

Page 15
Image 15
IBM EM78M611E manual 2.4 R3 Status Register Default Value0B00011XXX, R3 0 Carry/Borrow Flag, Bit