Renesas SH7781 - Manual (Page 1638)

32. Electrical Characteristics
Rev.1.00 Jan. 10, 2008 Page 1608 of 1658
REJ09B0261-0100
32.3.12 HSPI Module Signal Timing
Table 32.17 HSPI Module Signal Timing
Item Symbol Min. Max. Unit Figure
HSPI clock frequency (master) T
SPICYC
— Pck/8 MHz 32.49
HSPI clock frequency (slave) Pck/12
HSPI clock high level width t
SPIHW
60 — ns
HSPI clock low level width t
SPILW
60 — ns
HSPI_TX setup time t
SUSPITX
— 20 ns
HSPI_TX delay time t
DSPITX
— 20 ns
HSPI_RX setup time t
SUSPIRX
20 — ns
HSPI_RX hold time t
HLSPIRX
20 — ns
HSPI_CS lead time t
cCSLEAD
100 — ns
Note: Pck is the frequency of the peripheral clock.
HSPI_ CS
t
SPICYC
t
CSLEAD
t
SUSPITX
t
SUSPIRX
t
SUSPIRX
t
HLSPIRX
t
SUSPITX
t
DSPITX
t
HLSPIRX
t
DSPITX
t
SPILW
t
SPIHW
(CLKP = 0)
HSPI_CLK
(CLKP = 1)
HSPI_CLK
(LMSB = 0)
HSPI_TX
(LMSB = 1)
HSPI_TX
HSPI_RX
HSPI_RX
MSB-1 MSB
MSB
MSB
MSB MSB-1
MSB-1
MSB-1 MSB-2
Figure 32.49 HSPI Data Output/Input Timing