HD6432351 datasheet(65/1025 Pages) RENESAS

номер детали	HD6432351

подробное описание детали	16-Bit Single-Chip Microcomputer

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Section 2 CPU

Rev. 3.00 Sep 15, 2006 page 31 of 988

REJ09B0330-0300

2.4.2

General Registers

The CPU has eight 32-bit general registers. These general registers are all functionally alike and

can be used as both address registers and data registers. When a general register is used as a data

as 32-bit registers or address registers, they are designated by the letters ER (ER0 to ER7).

The ER registers divide into 16-bit general registers designated by the letters E (E0 to E7) and R

(R0 to R7). These registers are functionally equivalent, providing a maximum sixteen 16-bit

registers. The E registers (E0 to E7) are also referred to as extended registers.

The R registers divide into 8-bit general registers designated by the letters RH (R0H to R7H) and

RL (R0L to R7L). These registers are functionally equivalent, providing a maximum sixteen 8-bit

registers.

Figure 2.8 illustrates the usage of the general registers. The usage of each register can be selected

independently.

• Address registers

• 32-bit registers

• 16-bit registers

• 8-bit registers

ER registers

(ER0 to ER7)

E registers (extended registers)

(E0 to E7)

R registers

(R0 to R7)

RH registers

(R0H to R7H)

RL registers

(R0L to R7L)

Figure 2.8 Usage of General Registers

HD6432351 датащи(PDF) 65 Page - Renesas Technology Corp