em78p613 ELAN Microelectronics Corp, em78p613 Datasheet - Page 13

• Manufacturer Part Number: em78p613
• Description: Universal Serial Bus Series Microcontroller
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 01.09.2009
(This specification is subject to change without further notice)
7.2.2.4
R3 [0] Carry/Borrow Flag
R3 [1] Auxiliary Carry/Borrow Flag. For ADD, SUB Instructions
Bit 7
PS2
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.
0 : No carry-out from the result’s Most Significant bit
1 : A carry-out from the result’s Most Significant bit occurred
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
A12 A11 A10
R3 (Status Register) Default Value:(0B_0001_1XXX)
Bit 6
PS1
Bit 5
PS0
Figure 7-2 Program Counter and Stack
0000
03FF
0400
07FF
0800
0BFF
1000
13FF
1400
17FF
For Borrow, the polarity is reversed.
A9 A8
Bit 4
Page 0
Page 1
Page 2
Page 0
Page 0
T
Universal Serial Bus Series Microcontroller
NOTE
NOTE
A7~A0
Bit 3
P
0000 : Reset Vector
0001 : Interrupt Vector
Interrupt
RETL
RETI
RET
Call
Bit 2
Z
Bit 1
DC
Stack 1
Stack 2
Stack 3
Stack 4
Stack 5
Stack 6
Stack 7
Stack 8
EM78P613
Bit 0
C
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