UPD77018A NEC, UPD77018A Datasheet - Page 12

• Manufacturer Part Number: UPD77018A
• Description: 16 bits/ Fixed-point Digital Signal Processor
• Manufacturer: NEC

12
Remark
SCK1
SORQ1
SOEN1
SO1
SIEN1
SI1
SCK2
SOEN2
SO2
SIEN2
SI2
SIAK1
• Serial interface
Symbol
The state of the pins added 3S becomes high impedance, when data output have been finished or RESET is input.
50
53
54
52
49
48
59
57
58
60
61
51
Pin No.
O (3S)
O (3S)
I/O
O
O
I
I
I
I
I
I
I
I
Clock input for serial 1
Serial output 1 request
Serial output 1 enable
Serial data output 1
Serial input 1 enable
Serial data input 1
Clock input for serial 2
Serial output 2 enable
Serial data output 2
Serial input 2 enable
Serial data input 2
Serial input 1 acknowledge
Function
PD77018A, 77019