Z380 Datasheet, PDF (6/115 Pages) Zilog, Inc. – MICROPROCESSOR

ZILOG
PIN DESCRIPTION (Continued)
Pin
Names
CLKI
CLKO
CLKSEL
BUSCLK
IOCLK
A31-A0
D15-D0
/TREFR,/TREFA,
/TREFC
/MRD,/MWR
/BHEN,/BLEN
/LMCS,/UMCS,
/MCS3-MCS0
/MSIZE,/WAIT
/HALT,/STNBY
/M1,/INTAK
/IORQ,/IORD,
/IOWR
/BREQ
/BACK
/NMI,/INT3-/INT0
/RESET
/EV
V
DD
V
SS
Table 1. Z380 MPU Pin Conditioning Characteristics
Operation Mode Conditions
Normal
/BREQ=1,/BACK=1,
/EV=NC
Bus Relinquish
/BREQ=0,/BACK=0,
/EV=NC
Input
Output/No Connection
Input
Output
Output
Output
Input
Output/No Connection
Input
Output
Output
Tri-state
Input/Output
Output
Tri-state
Tri-state
Output
Output
Output
Tri-state
Tri-state
Tri-state
Input
Output
Output
Output
Input
Output
Input
Input
No Connection
Power
Ground
Input
Output
Output
Tri-state
Input
Output
Input
Input
No Connection
Power
Ground
MICROPROCESSOR
Evaluation
Input
No Connection
Input
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Input
Tri-state
Tri-state
Tri-state
Input
Tri-state
Input
Input
Input
Power
Ground
PS010001-0301