Datasheet

ADuC845/ADuC847/ADuC848 Data Sheet
Rev. C | Page 102 of 108
Table 71. SPI SLAVE MODE TIMING (CPHA = 0) Parameter
Min Typ Max Unit
t
SS
SS to SCLOCK Edge
0 ns
t
SL
SCLOCK Low Pulse Width 330 ns
t
SH
SCLOCK High Pulse Width 330 ns
t
DAV
Data Output Valid After SCLOCK Edge 50 ns
t
DSU
Data Input Setup Time Before SCLOCK Edge 100 ns
t
DHD
Data Input Hold Time After SCLOCK Edge 100 ns
t
DF
Data Output Fall Time 10 25 ns
t
DR
Data Output Rise Time 10 25 ns
t
SR
SCLOCK Rise Time 10 25 ns
t
SF
SCLOCK Fall Time
10
25
ns
t
DOSS
Data Output Valid After
SS Edge
20 ns
t
SFS
SS High After SCLOCK Edge
ns
MISO
MOSI
SCLOCK
(CPOL = 1)
SCLOCK
(CPOL = 0)
SS
MSB
BITS 6–1
LSB
BITS 6–1
LSB IN
t
DHD
t
DSU
t
DR
t
DF
t
DAV
t
DOSS
t
SH
t
SL
t
SR
t
SF
t
SFS
MSB IN
t
SS
04741-084
Figure 79. SPI Slave Mode Timing (CHPA = 0)