Teac X-2000R - Page 26

X-2000R
26
3-7 IC BLOCK DIAGRAMS
LM6402H-325
128x 4 Bit a
R So
Ky ROM
ie
COUNTER
‘AM
fi
[| Lie
PGo-s <p> PORT |
[STACK 1]
[STACK 2|
PFo-3 <cete>|PORT EGS STACK 3
|
LE
«
[STACK
4|
PLAO-7 _
a
PEo-3 <-> PORT ie
INTERRUPT TT
ici ial ale is
D Cc B A Dai
i A \ {\ OEX tal
VoD
V V V V bvss
PDO-3 PCO-3. = PBO-3— PAO-3
BA6251
181475
INT IN2 IN3
(8) dr
al
OO: Oe
Q|
LSJ
IN4—INS
LA6358
Lé |
ING
L8 |
IN7_ GND