R0K561668S000BE Renesas Electronics America, R0K561668S000BE Datasheet - Page 32

• Manufacturer Part Number: R0K561668S000BE
• Description: KIT STARTER FOR H8SX/1668
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of R0K561668S000BE

• For Use With/related Products: H8SX/1668
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Contents: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Section 1 CPU
Rev. 4.00 Sep. 18, 2008 Page 14 of 914
REJ09B0102-0400
Bit
5
4
3
2
1
0
Bit Name
H
U
N
Z
V
C
Initial
Value
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
Undefined R/W
R/W
Description
Half-Carry Flag
When the ADD.B, ADDX.B, SUB.B, SUBX.B,
CMP.B, or NEG.B instruction is executed, this flag is
set to 1 if there is a carry or borrow at bit 3, and
cleared to 0 otherwise. When the ADD.W, SUB.W,
CMP.W, or NEG.W instruction is executed, this flag
is set to 1 if there is a carry or borrow at bit 11, and
cleared to 0 otherwise. When the ADD.L, SUB.L,
CMP.L, or NEG.L instruction is executed, this flag is
set to 1 if there is a carry or borrow at bit 27, and
cleared to 0 otherwise.
User Bit
Can be written to and read from by software using
the LDC, STC, ANDC, ORC, and XORC
instructions.
Negative Flag
Stores the value of the most significant bit (regarded
as sign bit) of data.
Zero Flag
Set to 1 to indicate zero data, and cleared to 0 to
indicate non-zero data.
Overflow Flag
Set to 1 when an arithmetic overflow occurs, and
cleared to 0 otherwise.
Carry Flag
Set to 1 when a carry occurs, and cleared to 0
otherwise. A carry has the following types:
•
•
•
The carry flag is also used as a bit accumulator by
bit manipulation instructions.
Carry from the result of addition
Borrow from the result of subtraction
Carry from the result of shift or rotation