GMS81C1404 Datasheet, PDF (13/93 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

• RD2
Data Bus
Data Bus
Data Reg.
Direction Reg.
Data Bus
Read
• RC5/SIN
Data Bus
Function
Select
Data Bus
Data Reg.
Direction Reg.
Data Bus
Read
SIN
GMS81C1404/GMS81C1408
V_DD
V_SS
VDD
V_SS
Schmitt Trigger
• RC3 / SRDYIN / SRDYOUT, RC4 / SCKIN / SCKOUT
Data Bus
Function
Select
Data Bus
SRDYOUT
SCKOUT
Data Reg.
1
0
Direction Reg.
Data Bus
Read _SCKIN
SRDYIN
V_DD
V_SS
Schmitt Trigger
June. 2001 Ver 1.2
11