NEC PD754244 Manuel D’Utilisation

User’s Manual  U10676EJ3V0UM

Function:  (SP–2) 

←

 

×, ×, MBE, RBE, (SP–3) 

←

 PC

7-4

(SP–4) 

←

 PC

3-0

, (SP–5) 

←

 0, 0, 0, 0

(SP–6) 

←

 PC

11-8

PC

11-0

 

←

 addr1, SP 

←

 SP – 6

Function: [MkI mode]

(SP–1) 

←

 PC

7-4

, (SP–2) 

←

 PC

3-0

(SP–3) 

←

 MBE, RBE, 0, 0

(SP–4) 

←

 PC

11-8

, PC

11-0

 

←

 addr, SP

←

SP – 4

addr = 0000H to 0FFFH

[MkII mode]

(SP–2) 

←

 

×, ×, MBE, RBE

(SP–3) 

←

 PC

7-4

, (SP–4) 

←

 PC

3-0

(SP–5) 

←

 0, 0, 0, 0, (SP–6) 

←

 PC

11-8

PC

11-0

 

←

 addr, SP 

←

 SP–6

Saves the contents of the program counter (return address), MBE, and RBE to the data memory (stack) addressed

by the stack pointer (SP), decrements the SP, and then branches to an address specified by 12-bit immediate data

addr.