TMP89FS60 datasheet(23/410 Pages) TOSHIBA

23 / 410 page

Page 9

TMP89FS60

RA001

2. CPU Core

2.1

Configuration

The CPU core consists of a CPU, a system clock controller and a reset circuit.

This chapter describes the CPU core address space, the system clock controller and the reset circuit.

2.2

Memory space

The 870/C1 CPU memory space consists of a code area to be accessed as instruction operation codes and operands

and a data area to be accessed as sources and destinations of transfer and calculation instructions.

Both the code and data areas have independent 64-Kbyte address spaces.

2.2.1

Code area

The code area stores operation codes, operands, vector tables for vector call instructions and interrupt vector

tables.

The RAM, the BOOTROM and the Flash are mapped in the code area.

Note: Only the first 2 Kbytes of the BOOTROM are mapped in the memory map, except in the serial PROM mode.

Figure 2-1 Memory Map in the Code Area

2.2.1.1

RAM

The RAM is mapped in the data area immediately after reset release.

0x0000

SWI instruction

(0xFF) is fetched.

SWI instruction

(0xFF) is fetched.

SWI instruction

(0xFF) is fetched.

0x003F

0x0040

RAM

(3072 bytes)

RAM

(3072 bytes)

0x0C3F

SWI instruction

(0xFF) is fetched.

SWI instruction

(0xFF) is fetched.

SWI instruction

(0xFF) is fetched.

0x1000

Flash

(61440 bytes)

Flash

(61440 bytes)

BOOTROM

(2048 bytes)

BOOTROM

(2048 bytes)

0x17FF

0x1800

Flash

(59392 bytes)

Flash

(59392 bytes)

0xFFA0

Vector table for vec-

tor call instructions

(32 bytes)

Vector table for vec-

tor call instructions

(32 bytes)

Vector table for vec-

tor call instructions

(32 bytes)

Vector table for vec-

tor call instructions

(32 bytes)

0xFFBF

0xFFC8

Interrupt vector

table

(56 bytes)

Interrupt vector

table

(56 bytes)

Interrupt vector

table

(56 bytes)

Interrupt vector

table

(56 bytes)

0xFFFF

Immediately after re-

set release

When the RAM is

mapped in the code

area

When the

BOOTROM is

mapped in the code

area

When the RAM and

the BOOTROM are

mapped in the code

area

TMP89FS60 Scheda tecnica(PDF) 23 Page - Toshiba Semiconductor

TMP89FS60 Scheda tecnica(HTML) 23 Page - Toshiba Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Scheda tecnica Scarica

Link URL