R01UH0823EJ0100 Rev.1.00
Page 1780 of 1823
Jul 31, 2019
RX23W Group
51. Electrical Characteristics
Note 1. t
Pcyc
: PCLK cycle
Note 2. N: An integer from 1 to 8 that can be set by the RSPI clock delay register (SPCKD)
Note 3. N: An integer from 1 to 8 that can be set by the RSPI slave select negation delay register (SSLND)
Table 51.33
Timing of On-Chip Peripheral Modules (2)
Conditions: 1.8 V ≤ VCC = VCC_USB = AVCC0 = VCC_RF = AVCC_RF ≤ 3.6 V, VSS = AVSS0 = VSS_USB = VSS_RF = 0 V,
T
a
= –40 to +85°C, C = 30 pF, when high-drive output is selected by the drive capacity control register
Item
Symbol
Min.
Max.
Unit
Test
Conditions
RSPI RSPCK clock
cycle
Master
t
SPcyc
2
4096
t
Pcyc
Slave
8
4096
RSPCK clock
high pulse width
Master
t
SPCKWH
(t
SPcyc
– t
SPCKr
–
t
SPCKf
)/2 – 3
—
ns
Slave
(t
SPcyc
– t
SPCKr
–
t
SPCKf
)/2
—
RSPCK clock
low pulse width
Master
t
SPCKWL
(t
SPcyc
– t
SPCKr
–
t
SPCKf
)/2 – 3
—
ns
Slave
(t
SPcyc
– t
SPCKr
–
t
SPCKf
)/2
—
RSPCK clock
rise/fall time
Output 2.7 V or above
t
SPCKr
,
t
SPCKf
—
10
ns
1.8 V or above
—
15
Input
—
1
μs
Data input setup
time
Master 2.7 V or above
t
SU
10
—
ns
1.8 V or above
30
—
Slave
25 – t
Pcyc
—
Data input hold
time
Master RSPCK set to a division ratio
other than PCLKB divided by 2
t
H
t
Pcyc
—
ns
RSPCK set to PCLKB divided
by 2
t
HF
0
—
Slave
t
H
20 + 2 × t
Pcyc
—
SSL setup time Master
t
LEAD
–30 + N*
× t
SPcyc
—
ns
Slave
2
—
t
Pcyc
SSL hold time
Master
t
LAG
–30 + N*
× t
SPcyc
—
ns
Slave
2
—
t
Pcyc
Data output
delay time
Master 2.7 V or above
t
OD
—
14
ns
1.8 V or above
—
30
Slave
2.7 V or above
—
3 × t
Pcyc
+ 65
1.8 V or above
—
3 × t
Pcyc
+105
Data output hold
time
Master
t
OH
0
—
ns
Slave
0
—
Successive
transmission
delay time
Master
t
TD
t
SPcyc
+ 2 × t
Pcyc
8 × t
SPcyc
+ 2 ×
t
Pcyc
ns
Slave
4 × t
Pcyc
—
MOSI and MISO
rise/fall time
Output 2.7 V or above
t
Dr
, t
Df
—
10
ns
1.8 V or above
—
15
Input
—
1
μs
SSL rise/fall
time
Output 2.7 V or above
t
SSLr
,
t
SSLf
—
10
ns
1.8 V or above
—
15
ns
Input
—
1
μs
Slave access time
2.7 V or above
t
SA
—
6
t
Pcyc
1.8 V or above
—
7
Slave output release
time
2.7 V or above
t
REL
—
5
t
Pcyc
1.8 V or above
—
6