Operation In Each Mode - Toshiba TLCS-900/L1 Series Manual

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.
Output extension
TMP91C824
TXD
SCLK
Port
Figure 3.9.17 SCLK Output Mode Connection Example
Output extension
TMP91C824
TXD
SCLK
Port
External clock
Figure 3.9.18 SCLK Input Mode Connection Example
Shift register A
B
SI C
D
SCK E
F
RCK G
H
TC74HC595 or equivalent
Shift register A
B
SI C
D
SCK E
F
RCK G
H
TC74HC595 or equivalent
91C824-142
Input extension
TMP91C824 Shift register
RXD QH
SCLK CLOCK
S/ L
Port
TC74HC165 or equivalent
Input extension
TMP91C824 Shift register
RXD QH
SCLK CLOCK
S/ L
Port
TC74HC165 or equivalent
External clock
TMP91C824
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2008-02-20