YR0K42378FC000BA Renesas Electronics America, YR0K42378FC000BA Datasheet - Page 113
YR0K42378FC000BA
Manufacturer Part Number
YR0K42378FC000BA
Description
KIT EVAL FOR H8S/2378
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.YR0K42378FC000BA.pdf
(1208 pages)
Specifications of YR0K42378FC000BA
Contents
Board
For Use With/related Products
H8S/2378
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 113 of 1208
- Download datasheet (8Mb)
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 is an 8-bit register that can be operated by the LDC, STC, ANDC, ORC, and XORC
instructions. When an instruction other than STC is executed, all interrupts including NMI are
masked in three states after the instruction is completed.
Bit
7
6 to
3
2 to
0
Bit Name
T
—
I2
I1
I0
Program Counter (PC)
Extended Control Register (EXR)
Initial Value
0
All1
1
1
1
SP (ER7)
R/W
R/W
—
R/W
R/W
R/W
Figure 2.8 Stack
Description
Trace Bit
When this bit is set to 1, trace exception processing
starts every when an instruction is executed. When
this bit is cleared to 0, instructions are consecutively
executed.
Reserved
These bits are always read as 1.
Interrupt Mask Bits 2 to 0
Specify interrupt request mask levels (0 to 7). For
details, see section 5, Interrupt Controller.
Rev.7.00 Mar. 18, 2009 page 45 of 1136
Stack area
Free area
REJ09B0109-0700
Section 2 CPU
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