TMP92FD54AI datasheet(30/84 Pages) TOSHIBA

30 / 84 page

2006-01-27

92FD54AI-30

TMP92FD54AI

(2) Mode settings

Before on-board programming can be performed, the device must be started up in

Single Boot Mode. The input pins must be set as follows in order to start the device up

in Single Boot Mode.

AM0

= 1

AM1

= 1

TEST0

= 0

TEST1

= 0

RESET

= 0

→ 1

Set the RESET input pin Low (= 0) and set the AM0, AM1, TEST0 and TEST1 pins as

shown above. Then de-assert RESET (i.e. set it to 1). The device will start up in Single

Boot Mode.

(3) Memory map

Figure 4.3.2 compares the memory maps for Single-Chip Mode and Single-Boot Mode.

As shown, in Single-Boot Mode the internal flash memory is mapped into 010000H to

08FFFFH. The boot ROM (mask ROM) is mapped into FFF400H to FFFFFFH.

Figure 4.3.2 Memory maps for Single-Chip Mode and Single-Boot Mode

Single-Chip Mode

Single-Boot Mode

000000H

000400H

008400H

F80000H

FFFF00H

FFFFFFH

FFF000H

000000H

000400H

010000H

090000H

FFF400H

FFFF00H

FFFFFFH

008400H

(予約)

内蔵

Flash ROM

Internal I/O

Internal RAM

32KB

External

Memory

Internal Flash ROM

512KB

Internal I/O

Internal RAM

32KB

External

Memory

External

Memory

Reserved

Internal Boot ROM 3KB

Internal Flash ROM

512KB

(Interrupt vector 256B)

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