HD404898 データシートの表示（PDF） - Renesas Electronics

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HD404898

Low-Voltage AS Microcomputers with On-Chip LCD Circuit

Renesas Electronics 

HD404889/HD404899/HD404878/HD404868 Series

$0000

$000F

$003F

$0FFF

Vector addresses

(16 words)

Zero page subroutine area

(64 words)

HD404874/HD404864

pattern/program area

(4,096 words)

HD404888/HD404898/HD404878/

HD404868/HCD404878

pattern/program area

(8,192 words)

$1FFF

$0000

$0001

JMPL instruction

(Jump to reset routine)

$0002

$0003

JMPL instruction

(Jump to WU0 to WU3 routine)

$0004

$0005

JMPL instruction

(Jump to INT0 routine)

$0006

$0007

JMPL instruction

(Jump to INT1 routine)

$0008

$0009

JMPL instruction

(Jump to timer A routine)

$000A

$000B

JMPL instruction

(Jump to timer B/timer D routine)

$000C

$000D

JMPL instruction

(Jump to timer C routine)

$000E

JMPL instruction

$000F (Jump to A/D or serial interface routine)

HD4048812/HD4048912

pattern/program area

(12,288 words)

$2FFF

HD404889/HD4074889/

HD404899/HD4074899/HD4074869/

HCD404889/HCD404899

pattern/program area

(16,384 words)

$3FFF

Figure 1 ROM Memory Map

RAM Memory Map

The MCU has on-chip RAM comprising a memory register area, LCD data area, data area, and stack area.

In addition to these areas, an interrupt control bit area, special register area, and register flag area are

mapped onto RAM memory space as a RAM-mapped register area.The RAM memory map is shown in

figure 2 and described below.

Memory register, LCD data area, data area, and stack area values are unstable immediately after

power is turned on. They must be initialized before use.

Rev.6.00, Sep.08.2003, page 26 of 197

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