h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 89
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h8s-2161b
Manufacturer Part Number
h8s-2161b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2161B.pdf
(845 pages)
- Current page: 89 of 845
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2.4.2
This 24-bit counter indicates the address of the next instruction the CPU will execute. The length
of all CPU instructions is 2 bytes (one word), so the least significant PC bit is ignored. (When an
instruction is fetched for read, the least significant PC bit is regarded as 0.)
2.4.3
EXR does not affect operation in this LSI.
2.4.4
This 8-bit register contains internal CPU status information, including an interrupt mask bit (I) and
half-carry (H), negative (N), zero (Z), overflow (V), and carry (C) flags. Operations can be
performed on the CCR bits by the LDC, STC, ANDC, ORC, and XORC instructions. The N, Z, V,
and C flags are used as branching conditions for conditional branch (Bcc) instructions.
Bit
7
6 to 3
2 to 0
Program Counter (PC)
Extended Control Register (EXR)
Condition-Code Register (CCR)
Bit Name
T
—
I2
I1
I0
SP (ER7)
Initial Value
0
All 1
All 1
R/W
R/W
R
R/W
Figure 2.8 Stack
Trace Bit
Does not affect operation in this LSI.
Reserved
These bits are always read as 1.
Interrupt Mask Bits 2 to 0
Do not affect operation in this LSI.
Description
Rev. 3.00 Mar 21, 2006 page 35 of 788
Free area
Stack area
REJ09B0300-0300
Section 2 CPU
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