SH7144_08 Datasheet, PDF (830/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

26. Electrical Characteristics
26.3.9 Serial Communication Interface (SCI) Timing
Table 26.11 shows serial communication interface timing.
Table 26.11 Serial Communication Interface Timing
Conditions: V_CC = PLLV_CC =3.3 V ± 0.3 V, AV_CC = 3.3 V ± 0.3 V, AV_CC = V_CC ± 0.3 V,
AV_ref = 3.0 V to AV_CC , V_SS = PLLV_SS = AV_SS = 0 V, T_a = –20°C to +75°C
(regular specifications), T_a = –40°C to +85°C (wide-range specifications),
When programming or erasing flash memory, T_a = –20°C to +75°C.
Item
Input clock cycle (asynchronous)
Input clock cycle (clock sync)
Input clock pulse width
Input clock rise time
Input clock fall time
Transmit data delay time asynchronous
Received data setup time
Received data hold time
Transmit data delay time clock sync
Received data setup time (When SCK
Received data hold time ^input)
Transmit data delay time clock sync
Received data setup time (When SCK
Received data hold time ^output)
Symbol Min.
Max.
t_scyc
4
⎯
t
6
⎯
scyc
t
0.4
0.6
sckw
t
⎯
1.5
sckr
t_sckf
⎯
1.5
t_TxD
⎯
100
t_RxS
100
⎯
t_RxH
100
⎯
t_TxD
⎯
t_pcyc + 43
t
t + 25 ⎯
RxS
pcyc
t
t + 25 ⎯
RxH
pcyc
t
⎯
65
TxD
t
0.5 t + 50 ⎯
RxS
pcyc
t_RxH
1.5 t_pcyc
⎯
Unit
t_pcyc
t
pcyc
t
scyc
t
pcyc
t_pcyc
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure
Figure
26.19
Figure
26.20
Rev.4.00 Mar. 27, 2008 Page 786 of 882
REJ09B0108-0400