Toshiba TX03 Series Manual page 524

25. Electrical Characteristics
25.6 AC Electrical Characteristics
25.6 AC Electrical Characteristics
25.6.1 AC Measurement Condition
The AC characteristics data of this chapter is measured under the following conditions unless otherwise no-
ted.
・ Output levels: High = 0.8 × DVDD5, Low = 0.2 × DVDD5
・ Input levels: Refer to low-level input voltage and high-level input voltage in "DC Electrical Charac-
・ Load capacity: CL = 30pF
25.6.2 Serial Channel (SIO/UART)
25.6.2.1
cle time which is identical to the fsys cycle time. It varies depending on the programming of the clock
gear function.
(1)
[Input]
SCLK Clock High width (input)
SCLK Clock Low width (input)
SCLK cycle
Valid Data Input ←
SCLK rise or fall (Note 1)
SCLK rise or fall →
Input Data hold (Note 1)
[Output]
SCLK Clock High width (input)
SCLK Clock Low width (input)
SCLK cycle
Output Data ←
SCLK rise or fall (Note 1)
SCLK rise or fall →
Output Data hold (Note 1)
2019-02-06
teristics".
I/O Interface Mode
In the table below, the letter x represents the SIO operation clock SCLK Clock Low width (input) cy-
SCLK input mode
Parameter
Parameter
Note 1: SCLK rise/fall : SCLK rise mode uses the rise timing of SCLK. SCLK fall mode uses the fall timing of
SCLK.
Note 2: Use the cycle of SCLK in a range where the calculation value keeps positive.
Note 3: The value indicates a minimum value that enables t
Equation
Symbol
Min
t
4x
SCH
t
4x
SCL
t t + t
SCY SCH SCL
t
30
SRD
t
x + 30
HSR
Equation
Symbol
Min
t
4x
SCH
t
4x
SCL
t t + t
SCY SCH SCL
t t /2 − 3x− 45
OSS SCY
t t /2
OHS SCY
Page 502
40 MHz
Max Min Max
− 100 −
− 100 −
− 200 −
− 30 −
− 55 −
40 MHz
Max Min Max
120
− −
(Note 3)
120
− −
(Note 3)
− 240 −
0
− −
(Note 2)
− 120 −
to be zero or more.
OSS
TMPM3V6/M3V4
Unit
ns
Unit
ns