UPD750064CU datasheet(19/82 Pages) NEC

19 / 82 page

µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)

Data Sheet U10165EJ2V0DS00

Figure 5-1. Program Memory Map (

µPD750064)

000H

Address

765

MBE RBE

Internal reset start address

(high-order 4 bits)

002H MBE RBE

INTBT/INT4

(high-order 4 bits)

start address

004H MBE RBE

INT0

(high-order 4 bits)

start address

006H MBE RBE

INT1

(high-order 4 bits)

start address

008H MBE RBE

INTCSI

(high-order 4 bits)

start address

00AH MBE RBE

INTT0

(high-order 4 bits)

start address

00CH MBE RBE

INTT1

(high-order 4 bits)

start address

020H

07FH

080H

7FFH

800H

FFFH

GETI instruction reference table

(low-order 8 bits)

CALLF

! faddr

instruction

entry

address

Branch address

of BR BCXA, BR

BCDE, BR !addr,

BRA !addr1Note or

CALLA !addr1Note

instruction

CALL !addr

instruction

subroutine entry

address

BR $addr

instruction relative

branch address

BRCB

!caddr

instruction

branch

address

–15 to –1,

+2 to +16

Branch destination

address and

subroutine entry

address when

GETI instruction

is executed

Internal reset start address

INTBT/INT4

start address

INT0

start address

INT1

start address

INTCSI

start address

INTT0

start address

INTT1

start address

Note

Can be used only in the Mk II mode.

Remark In addition to the above, a branch can be taken to the address indicated by changing only the low-order

eight bits of PC by executing the BR PCDE or BR PCXA instruction.

UPD750064CU Datasheet(PDF) 19 Page - NEC

UPD750064CU Datasheet(HTML) 19 Page - NEC

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

Datasheet Download

Link URL