GMS81508A Datasheet, PDF (34/91 Pages) Hynix Semiconductor – USERS MANUAL

GMS81508/16
2.9. SERIAL I/O
The serial I/O is 8-bit clock synchronous type and consists of serial I/O register, serial I/O mode
register, clock selection circuit octal counter and control circuit.
7
6
6
0
Internal Data BUS
 Srdy SM1 SM0 SCK1 SCK0 SIOST SOSF _SIOM
Srdy
SM1
SM0
Exclk
2
PS3
PS4
PS5
MUX
Srdy In
Sout
Sin
Srdy0
R
Q
S
Internal Data BUS
Control
Circuit
Sclk
Octal Counter
IFSIO
76543210
8
SIOR
29