UPD750064CU datasheet(51/82 Pages) NEC

51 / 82 page

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

Data Sheet U10165EJ2V0DS00

Instruction

Number

Addressing

Mnemonic

Operand

of Machine

Operation

Skip Condition

Group

of Bytes

Cycles

Area

Subroutine

CALLNote

!addr

µPD750064

stack control

(SP–3)

← MBE, RBE, 0, 0

(SP–4) (SP–1) (SP–2)

← PC11–0

PC11–0

← addr, SP ← SP–4

µPD750066, 750068

(SP–3)

← MBE, RBE, 0, PC12

(SP–4) (SP–1) (SP–2)

← PC11–0

PC12–0

← addr, SP ← SP–4

µPD750064

(SP–2)

← ×, ×, MBE, RBE

(SP–6) (SP–3) (SP–4)

← PC11–0

(SP–5)

← 0, 0, 0, 0

PC11–0

← addr, SP ← SP–6

µPD750066, 750068

(SP–2)

← ×, ×, MBE, RBE

(SP–6) (SP–3) (SP–4)

← PC11–0

(SP–5)

← 0, 0, 0, PC12

PC12–0

← addr, SP ← SP–6

CALLFNote

!faddr

µPD750064

(SP–3)

← MBE, RBE, 0, 0

(SP–4) (SP–1) (SP–2)

← PC11–0

PC11–0

← 0+faddr, SP ← SP–4

µPD750066, 750068

(SP–3)

← MBE, RBE, 0, PC12

(SP–4) (SP–1) (SP–2)

← PC11–0

PC12–0

← 00+faddr, SP ← SP–4

µPD750064

(SP–2)

← ×, ×, MBE, RBE

(SP–6) (SP–3) (SP–4)

← PC11–0

(SP–5)

← 0, 0, 0, 0

PC11–0

← 0+faddr, SP ← SP–6

µPD750066, 750068

(SP–2)

← ×, ×, MBE, RBE

(SP–6) (SP–3) (SP–4)

← PC11–0

(SP–5)

← 0, 0, 0, PC12

PC12–0

← 00+faddr, SP ← SP–6

Note

The operations indicated with thick lines can be performed only in the Mk II mode. The other operations

can be performed only in the Mk I mode.

UPD750064CU Datasheet(PDF) 51 Page - NEC

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