tmp89fm42 TOSHIBA Semiconductor CORPORATION, tmp89fm42 Datasheet - Page 258

• Manufacturer Part Number: tmp89fm42
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

17.4 Functions
17. Synchronous Serial Interface (SIO)
RA001
SCLK0 pin
SO0 pin
SI0 pin
Note:When an external clock input is used, 4/fcgck or longer is needed between the receive edge at the 8th bit and
the transfer edge at the first bit of the next transfer.
SLCK0 pin
SO0 pin
SI0 pin
SCLK0 pin
SO0 pin
SI0 pin
A6
C6
C7
A7
B0
D0
Figure 17-2 Transfer Edge
When SIOCR<SIOEDG>=“0”
When SIOCR<SIOEDG>=“1”
T0
R0
T0
R0
B1
D1
R1
R1
T1
T1
D2
B2
Page 244
R2 R3 R4 R5 R6 R7
R2 R3 R4 R5 R6 R7
T2
T2
T3
T3
Trailing edge at the
8th bit (receive edge)
T4
T4
Symbol
tBI
T5
T5
Interval time between bytes
T6
T6
tBI
T7
T7
Name
Leading edge at the
1st bit (transmit edge)
Minimum time
4/fcgck
TMP89FM42