psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 243

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

8.1.7
8.1.7.1
Figure 87
SCI Interface
Parameter
SCI Interface
SCLK cycle time
SCLK high time
SCLK low time
CS setup time
CS hold time
SDR setup time
SDR hold time
SDX data out delay
CS high to SDX tristate
SCLK to SDX active
Data Sheet
SCLK
SDR
SDX
CS
Microcontroller Interface Timing
Serial Control Interface (SCI) Timing
t
4
t
6
t
t
7
2
t
1
t
10
t
3
233
Symbol
t
t
t
t
t
t
t
t
t
t
1
2
3
4
5
6
7
8
9
10
t
8
Limit values
Min
500
100
100
0
10
40
40
Electrical Characteristics
t
5
Max
80
40
80
t
9
PSB 21391
PSB 21393
2001-03-07
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit