
464
Chapter 14
Queued CSI (CSI30, CSI31)
User’s Manual U16702EE3V2UD00
14.1.1 Queued CSI Block Diagram
Figure 14-1:
Queued CSI Block Diagram
14.1.2 Input/Output
Pins
The table below shows the input/output pins of the CSI3.
Notes: 1.
n = 0, 1
2.
The active level is programmable for each chip select.
Table 14-1:
Input/Output Pins of the CSI3
Signal
name
I/O
Active level
Disabled level
Function
SCK3n
I/O
–
H
Serial clock signal
SI3n
I
–
–
Input serial data signal
SO3n
O
–
–
Output serial data signal
CS3n0
O
L
Note 2
H
Note 2
Serial peripheral chip select signal
CS3n1
O
L
Note 2
H
Note 2
Serial peripheral chip select signal
CS3n2
O
L
Note 2
H
Note 2
Serial peripheral chip select signal
CS3n2
O
L
Note 2
H
Note 2
Serial peripheral chip select signal
Window Register
SIO
CS
Control
Rx Buffer
19
0
19
0
FIFO
20 bits x 16 elements
Full
Flag
16 x 2
NPB (NEC Peripheral Bus)
BRG
SEL
INTC3nO
Pointer
20
16
16
16
4
SCK3n
SO3n
SI3n
CS3n0
CS3n1
CS3n2
CS3n3
INTC3nI
electronic components distributor