Manual

High-Speed Microcontroller User’s Guide
Rev: 062210 80 of 176
Figure 6-1. Program Memory Interface
Figure 6-2. Program Memory Signals
DS80C320
PSEN
A
LE CK
74F373
LATCH
LBS ADDRESS
DATA BUS
MSB ADDRESS
PORT 2
(
8
)
(
7
)
27C256
32kB X 8
EPROM
(
8
)
OE
CE
DATA
PORT 0
ALE
PSEN
PORT 2
X
TAL1
LSB
ADDR
SINGLE CYCLE
MSB
A
DDRESS