H8SSLASH2214 datasheet(82/936 Pages) RENESAS

Il numero della parte	H8S/2214

Spiegazioni elettronici	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	936 Pages

Scroll/Zoom	100%

Produttore elettronici	RENESAS [Renesas Technology Corp]

Homepage	http://www.renesas.com

Logo

82 / 936 page

Section 2 CPU

Rev.4.00 Sep. 18, 2008 Page 22 of 872

REJ09B0189-0400

(e) Stack Structure

When the program counter (PC) is pushed onto the stack in a subroutine call, and the PC,

condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in

exception handling, they are stored as shown in figure 2.3. When EXR is invalid, it is not pushed

onto the stack. For details, see section 4, Exception Handling.

(a) Subroutine Branch

(b) Exception Handling

(16 bits)

EXR*1

Reserved*1 *3

CCR

CCR*3

(16 bits)

Notes: 1.

When EXR is not used it is not stored on the stack.

SP when EXR is not used.

Ignored when returning.

(SP

)

Figure 2.3 Stack Structure in Normal Mode

(2) Advanced Mode

(a) Address Space

Linear access is provided to a 16-Mbyte maximum address space (architecturally a maximum 16-

Mbyte program area and a maximum 4-Gbyte data area, with a maximum of 4 Gbytes for program

and data areas combined).

(b) Extended Registers (En)

The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments

of 32-bit registers or address registers.

All instructions and addressing modes can be used.

H8S/2214 Scheda tecnica(PDF) 82 Page - Renesas Technology Corp