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TMP92CM22
2007-02-16
92CM22-161
3.9.4 Operation in Each Mode
(1) Mode 0 (I/O interface mode)
This mode allows an increase in the number of I/O pins available for transmitting
data to or receiving data from an external shift register.
This mode includes the SCLK output mode to output synchronous clock SCLK and
SCLK input mode to input external synchronous clock SCLK.
Figure 3.9.17 Example of SCLK Output Mode Connection
Figure 3.9.18 Example of SCLK Output Mode Connection
Output extension
TC74HC595 or equivalent
A
B
SI C
D
SCK E
F
RCK G
H
TXD
SCLK
Port
Shift register TMP92CM22
Input extension
TC74HC165 or equivalent
A
B
QH C
D
CLOCK E
F
S/
L G
H
RXD
SCLK
Port
Shift register TMP92CM22
Output extension
TC74HC595 or equivalent
A
B
SI C
D
SCK E
F
RCK G
H
TXD
SCLK
Port
Shift register TMP92CM22
Input extension
TC74HC165 or equivalent
A
B
QH C
D
CLOCK E
F
S/
L G
H
RXD
SCLK
Port
Shift register TMP92CM22
External clock External clock