HD404669 Datasheet, PDF(107/142 Page) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

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HD404669 Datasheet, PDF (107/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

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$0000

$0001

..

.

$001F

$0020

..

.

$007F

$0080

..

.

$1FFF

$2000

HD404669 Series

11

11

1 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Lower 5 bits

1 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Upper 5 bits $0000

Vector address

$000F

$0010

Zero-page subroutine

(64 words)

Pattern

(4,096 words)

$003F

$0040

$0FFF

$1000

Program

(16,384 words)

JMPL instruction

(jump to RESET, STOPC routine)

JMPL instruction

(jump to INT0 routine)

JMPL instruction

(jump to INT1 routine)

JMPL instruction

(jump to timer A routine)

JMPL instruction

(jump to INT2 routine)

JMPL instruction

(jump to timer C, INT3 routine)

JMPL instruction

(jump to timer D, INT4 routine)

JMPL instruction

(jump to serial 1 routine)

$0000

$0001

$0002

$0003

$0004

$0005

$0006

$0007

$0008

$0009

$000A

$000B

$000C

$000D

$000E

$000F

$7FFF

Upper three bits are not to be used

(fill them with 111)

$3FFF

Figure 80 Memory Map in PROM Mode

107

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