US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 49
US38024-BAG1
Manufacturer Part Number
US38024-BAG1
Description
DEV EVALUATION KIT H8/38024
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of US38024-BAG1
Contents
2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
For Use With/related Products
H8/38024
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 49 of 684
- Download datasheet (5Mb)
2.2
2.2.1
All the general registers can be used as both data registers and address registers.
When used as data registers, they can be accessed as 16-bit registers (R0 to R7), or the high bytes
(R0H to R7H) and low bytes (R0L to R7L) can be accessed separately as 8-bit registers.
When used as address registers, the general registers are accessed as 16-bit registers (R0 to R7).
R7 also functions as the stack pointer (SP), used implicitly by hardware in exception processing
and subroutine calls. When it functions as the stack pointer, as indicated in figure 2.2, SP (R7)
points to the top of the stack.
2.2.2
The CPU control registers include a 16-bit program counter (PC) and an 8-bit condition code
register (CCR).
Program Counter (PC)
This 16-bit register indicates the address of the next instruction the CPU will execute. All
instructions are fetched 16 bits (1 word) at a time, so the least significant bit of the PC is ignored
(always regarded as 0).
SP (R7)
Register Descriptions
General Registers
Control Registers
Figure 2.2 Stack Pointer
Rev. 8.00 Mar. 09, 2010 Page 27 of 658
Lower address side [H'0000]
Upper address side [H'FFFF]
Unused area
Stack area
REJ09B0042-0800
Section 2 CPU
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