User's Manual

SYSTEM CONFIGURATION
11
2. SYSTEM CONFIGURATION
2.1 MSM80C154S/MSM83C154S/MSM85C154HVS Logic Symbols
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
T2
T2EX
RXD
TXD
INT0
INT1
T0
T1/HPDI
WR
RD
PORT 0
(BUS PORT)
PORT 1
PORT 2
PORT 3
XTAL1
XTAL2
RESET
ALE
PSEN
EA
VCC
VSS
RESET
ADDRESS LATCH
ENABLE
PROGRAM STORE
ENABLE
CPU MEMORY
SEPARATE
+5(V)
0(V)
Figure 2-1 MSM80C154S/83C154S/85C154HVS logic symbols