TLE7243SL Datasheet, PDF (22/28 Pages) Infineon Technologies AG – 8 Channel Protected Low-Side Relay Switch

SPI Driver for Enhanced Relay Control
SPIDER - TLE7243SL
Serial Peripheral Interface (SPI)
SO
Reset Value: 10000_H
CS¹⁾ 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
TER OL8 D8 OL7 D7 OL6 D6 OL5 D5 OL4 D4 OL3 D3 OL2 D2 OL1 D1
1) This bit is valid between CS hi -> lo and first SCLK lo -> hi transition.
Field
TER
OLn
(n = 8 - 1)
Dn
(n = 8 - 1)
Bits
CS
15,13,
11,9,7,
5, 3, 1
14,12,
10,8,6,
4, 2, 0
Type Description
R
Transmission Error
0 Previous transmission was successful (modulo 8 clocks received, minimum 16 bit).
1 Previous transmission failed or first transmission after reset.
R
Open Load Flag of channel n
0 Normal operation.
1 Open load has occurred in OFF state.
R
Diagnosis Flag of channel n
0 Normal operation.
1 Over load or over temperature switch off has occurred in ON state.
8.3.1 Timing Diagrams
CS
t_{CS( lead)}
SCLK
SI
t_SO(en)
SO
t_SCLK(P)
t_SCLK(H)
t_SCLK(L)
t_SI(su)
t_SI(h)
t_SO(v)
Figure 12 Timing Diagram
t_CS(lag)
t_CS(td)
0. 7V_cc
0. 2V_cc
0. 7V_cc
0. 2V_cc
0. 7V_cc
0. 2V_cc
t_SO(dis)
0. 7V_cc
0. 2V_cc
SPI Timing.emf
Datasheet
22
Rev. 1.0, 2009-09-30