i
Address i
c s i
Address
Decode
Wr I
Rd i-b
i
WAIT k
WAIT Gen
i
i
i
Data ! M
i
i
i
Clk i,
i
Reset id
i
i
i
INT y
i
I
i
i
i
i
i ---------.--..-_.-__-------.---------.--.-..----------..-.--..-.---------------------------.-
Input
DATA
INT
Control
I
I
i
i
i
i
i
i
i
i
Serial
Communication
Gr3 Control
(P/S&S/P)
i
i
i
Serial
Communication
Gr4 Control
i
I
I
,
i
i
Gr2 Control
i
i
i
Grl Control
Parallel device
(DECRIPT)
WAIT IN
Expansion
Output
(Pins 44 to 58)
Expansion Input (Pin 18)
Serial
Communication
Device
Gr3 RxD (SO)
(CXD1854)
(PCM1727)
Serial
Communication
Device
Gr4 RxD (SO)
Serial
Communication
Device
Gr2 RxD (SO)
(MB86342)
Serial
Communication
Device
Grl RxD (SO)
(MB90670)