Specifications

CPU Description
Figure 6-2 illustrates the possible modes of operation for the V20
processor and the methods used to transfer between them.
HOLD REQ / HOLD ACK
8088/86 Enhanced and
Unique Instruction Set
8080 Emulation
Idle at 10% Power
INT and ID
RETEM
CALLN
HOLD REQ / HOLD ACK
Standby
Mode
HALT
HLT
RESET, NMI or INT and IE
Native Mode
BRKEM
8080 MODE
RETI
INT or
NMI
RESET
Figure 6–2. V20 Modes.
6-13