Siemens ERTEC 200P, Руководство пользователя

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Copyright © Siemens AG 2016. All rights reserved 471 ERTEC 200P-2 Manual
Technical data subject to change Version 1.0
T
OR min
T
OR max
T
IR min
T
IR max
GPIO54(C)
(UART_TXD_O)
2.7
7.5
GPIO55(C)
(UART_RXD_I)
1.4
1.3
Based on
Buffer Driverstrength = 9mA
3.3.6 I²C Timing
3.3.6.1 I²C – APB
Symbol Parameter Min. Max. Unit Note
T
out SCLK
SCLK Output delay 1.5 8.3 ns
1)
T
out SDIO
SDIO Output delay 1.5 8.7 ns
1)
T
in SCLK
SCLK Output delay 1.5 4.4 ns
1)
T
in SDIO
SDIO Output delay 1.4 4.6 ns
1)
Based on
Buffer Driverstrength = 9mA
1)
C
L
= 20 pF
3.3.6.2 I²C – PN-IP
Symbol Parameter Min. Max. Unit Note
T
out SCLK
SCLK Output delay 1.5 8.4 ns
1)
T
out SDIO
SDIO Output delay 1.2 8.0 ns
1)
T
in SCLK
SCLK Output delay 1.4 4.8 ns
1)
T
in SDIO
SDIO Output delay 1.3 4.4 ns
1)
Based on
Buffer Driverstrength = 9mA
1)
C
L
= 20 pF
3.3.7 GPIO Timing
The GPIO interface is asynchronous to external signals. External inputs will be synchro-
nized internally.
All inputs have no timing relation from an external clock to internal clock of ERTEC 200P.
All Outputs have no timing relation from internal clock of ERTEC 200P to an external
clock.
Symbol Description
Min Max Unit Note
T
din
Runtime of Input signals 0.9 4.3 ns
1)
T
dout
Runtime of Output signals 2.4 8.2 ns
1)
T
din skew
Skew of Input signals - 2.5 ns
1)
T
dout skew
Skew of Output signals - 3.3 ns
1)
Based on
Buffer Driverstrength = 9mA
1)
C
L
= 20 pF
3.3.8 JTAG Timing
The JTAG interface consists of the TCK, TMS, TDI, TDO, and TRST signals. All input
signals except TRST are clocked in with a TCK rising edge. The TDO signal is output with
a TCK falling edge.